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- Science: Science 14
Alberta - Science: Science 14
Program of Studies | Adopted: 2003
A: : Investigating Properties of Matter (Nature of Science Emphasis)
A.1: : Science, Technology and Society (STS) and Knowledge
A.1.1: : Classify various forms of matter, including commonly used household substances, on the basis of their properties, and relate these properties to their safe use, storage and disposal
A.1.1.F: : apply the particle model of matter to explain the physical properties of the phases of matter
Phase Changes
Explore the relationship between molecular motion, temperature, and phase changes. Compare the molecular structure of solids, liquids, and gases. Graph temperature changes as ice is melted and water is boiled. Find the effect of altitude on phase changes. The starting temperature, ice volume, altitude, and rate of heating or cooling can be adjusted. 5 Minute Preview
A.1.2: : Describe solutions and solubility, solutes and solvents; and then describe how these concepts are applied to the production of prepared foods and other useful materials
A.1.2.B: : define, operationally, solute, solvent, solution and solubility; and express concentration in terms of mass per volume
Solubility and Temperature
Add varying amounts of a chemical to a beaker of water to create a solution, observe that the chemical dissolves in the water at first, and then measure the concentration of the solution at the saturation point. Either potassium nitrate or sodium chloride can be added to the water, and the temperature of the water can be adjusted. 5 Minute Preview
A.1.2.C: : provide examples of the effect of temperature change on solubility, and explain this effect on the basis of the particle model of matter (e.g., concentration of brines for pickling and syrups for canning)
Feel the Heat
Have you ever used a glove warmer to keep your hands warm? How about an instant cold pack to treat an injury? In the Feel the Heat Gizmo, create your own hot and cold packs using various salts dissolved in water and different bag materials. Learn about exothermic and endothermic processes and how energy is absorbed or released when bonds are broken and new bonds form. 5 Minute Preview
Solubility and Temperature
Add varying amounts of a chemical to a beaker of water to create a solution, observe that the chemical dissolves in the water at first, and then measure the concentration of the solution at the saturation point. Either potassium nitrate or sodium chloride can be added to the water, and the temperature of the water can be adjusted. 5 Minute Preview
A.1.2.F: : identify acid and base solutions in the home, job site and laboratory (e.g., vinegar, soda pop, shampoo, battery acid, household ammonia, antacids, dish soap, hydrochloric acid, sodium hydroxide) on the basis of their general properties; i.e., they conduct electricity, change colour of acid/base indicators and neutralize one another
pH Analysis
Test the acidity of common substances using pH paper. Materials including soap, lemon juice, milk, and oven cleaner can be tested by comparing the color of pH strips to a standard scale. 5 Minute Preview
pH Analysis: Quad Color Indicator
Test the acidity of many common everyday substances using pH paper (four color indicators). Materials including soap, lemon juice, milk, and oven cleaner can be tested by comparing the color of the pH strips to the calibrated scale. 5 Minute Preview
A.1.2.G: : describe, in general terms, the pH scale as an indicator of acidity or basicity; i.e., a pH of less than 7 indicates an acid, a pH of 7 indicates a neutral solution, and a pH of greater than 7 indicates a base
pH Analysis
Test the acidity of common substances using pH paper. Materials including soap, lemon juice, milk, and oven cleaner can be tested by comparing the color of pH strips to a standard scale. 5 Minute Preview
pH Analysis: Quad Color Indicator
Test the acidity of many common everyday substances using pH paper (four color indicators). Materials including soap, lemon juice, milk, and oven cleaner can be tested by comparing the color of the pH strips to the calibrated scale. 5 Minute Preview
A.1.3: : Describe the properties of elements and compounds, and use the periodic table to identify trends in properties
A.1.3.B: : use the periodic table to locate names and properties of elements
Electron Configuration
Create the electron configuration of any element by filling electron orbitals. Determine the relationship between electron configuration and atomic radius. Discover trends in atomic radii across periods and down families/groups of the periodic table. 5 Minute Preview
A.1.3.C: : name and write chemical formulas for common elements (e.g., aluminum, copper, iron, nitrogen, hydrogen, oxygen) and simple compounds (e.g., water, glucose, table salt, carbon dioxide, iron oxide, vinegar, methane, propane), and describe the uses of elements and compounds in society
Chemical Equations
Practice balancing chemical equations by changing the coefficients of reactants and products. As the equation is manipulated, the amount of each element is shown as individual atoms, histograms, or numerically. Molar masses of reactants and products can also be calculated and balanced to demonstrate conservation of mass. 5 Minute Preview
A.1.3.D: : demonstrate the difference between elements and compounds on the basis of a decomposition reaction (e.g., electrolysis of water)
Balancing Chemical Equations
Balance and classify five types of chemical reactions: synthesis, decomposition, single replacement, double replacement, and combustion. While balancing the reactions, the number of atoms on each side is presented as visual, histogram, and numerical data. 5 Minute Preview
Chemical Equations
Practice balancing chemical equations by changing the coefficients of reactants and products. As the equation is manipulated, the amount of each element is shown as individual atoms, histograms, or numerically. Molar masses of reactants and products can also be calculated and balanced to demonstrate conservation of mass. 5 Minute Preview
A.2: : Skill Outcomes (focus on scientific inquiry)
A.2.1: : Initiating and Planning
A.2.1.A: : Ask questions about relationships between and among observable variables, and plan investigations to address those questions
A.2.1.A.1: : define questions and problems to facilitate investigation (e.g., ask how a mixture of salt and water could be separated into its components)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
A.2.1.A.3: : formulate operational definitions of major variables and other aspects of their investigations (e.g., identify selected solutions and pure substances on the basis of their properties)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
A.2.1.A.4: : design an experiment, and identify major variables (e.g., investigate and classify elements as metals or nonmetals; test various detergents for effectiveness; identify factors that cause corrosion in iron)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Real-Time Histogram
Try to click your mouse once every 2 seconds. The time interval between each click is recorded, as well as the error and percent error. Data can be displayed in a table, histogram, or scatter plot. Observe and measure the characteristics of the resulting distribution when large amounts of data are collected. 5 Minute Preview
A.2.2: : Performing and Recording
A.2.2.A: : Conduct investigations into the relationships between and among observations, and gather and record qualitative and quantitative data
A.2.2.A.1: : carry out procedures, controlling the major variables (e.g., investigate properties, such as physical appearance, density, conductivity, solubility, magnetism and melting point, of sample materials in the laboratory and in a reference source, and tabulate the results)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Real-Time Histogram
Try to click your mouse once every 2 seconds. The time interval between each click is recorded, as well as the error and percent error. Data can be displayed in a table, histogram, or scatter plot. Observe and measure the characteristics of the resulting distribution when large amounts of data are collected. 5 Minute Preview
A.2.2.A.2: : organize data, using a format that is appropriate to the task or experiment (e.g., prepare a chart that describes the properties of common household solutions and lists procedures for their safe use, storage and disposal)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Seed Germination
Perform experiments with several seed types to see what conditions yield the highest germination (sprouting) rate. Three different types of seeds can be studied, and the temperature, water and light in the germination chamber can be controlled. No two trials will have the same result so repeated trials are recommended. 5 Minute Preview
A.2.3: : Analyzing and Interpreting
A.2.3.A: : Analyze qualitative and quantitative data, and develop and assess possible explanations
A.2.3.A.3: : interpret patterns and trends in data, and infer and explain relationships among the variables (e.g., use data collected by computer in the laboratory or by other means to demonstrate that the solubility of substances varies with the nature of the solute and the solvent)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
A.2.3.A.6: : identify and evaluate potential applications of findings (e.g., relate the use of standard laboratory separation techniques to the processes used in water treatment and purification; investigate how soaps and detergents can dissolve in both water and oil)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
A.2.4: : Communication and Teamwork
A.2.4.A: : Work collaboratively on problems; and use appropriate language and formats to communicate ideas, procedures and results
A.2.4.A.2: : communicate questions, ideas, intentions, plans and results, using lists, notes in point form, sentences, data tables, graphs, drawings, oral language and other means (e.g., write a paragraph to describe how chemicals are used at home and in industry)
Graphing Skills
Create a graph (bar graph, line graph, pie chart, or scatter plot) based on a given data set. Title the graph, label the axes, and choose a scale. Adjust the graph to fit the data, and then check your accuracy. The Gizmo can also be used to create a data table based on a given graph. 5 Minute Preview
Identifying Nutrients
Use a variety of real-world lab tests to analyze common food samples in order to determine if the food is a carbohydrate, a protein, or a lipid. Tests that can be performed include: Benedict, Lugol, Biuret, and Sudan Red. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
A.3: : Attitude Outcomes
A.3.5: : Stewardship
A.3.5.A: : Demonstrate sensitivity and responsibility in pursuing a balance between the needs of humans and a sustainable environment (e.g., assume part of the collective responsibility for the impact of humans on the environment; consider the impact of technologies, weighing scientific, technological and ecological factors; evaluate the long-term impact of waste disposal, such as paints and cleaning solutions, on the environment and the quality of life of living organisms)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
B: : Understanding Energy Transfer Technologies (Science and Technology Emphasis)
B.1: : Science, Technology and Society (STS) and Knowledge
B.1.1: : Describe how natural and technological cooling and heating systems are based upon the transfer of thermal energy (heat) from hot to cold objects
B.1.1.B: : describe the three ways; i.e., radiation, conduction and convection, that thermal energy is transferred from hot to cold objects
Herschel Experiment - Metric
Shine sunlight through a prism and use a thermometer to measure the temperature in different regions of the spectrum. The thermometer can be dragged through the visible spectrum and beyond. This recreates the experiment of William Herschel that led to the discovery of infrared radiation in 1800. 5 Minute Preview
B.1.1.C: : describe the particle model of matter in which every object consists of particles in motion, and describe the effect of temperature on this motion (e.g., observe Brownian motion)
Temperature and Particle Motion
Observe the movement of particles of an ideal gas at a variety of temperatures. A histogram showing the Maxwell-Boltzmann velocity distribution is shown, and the most probable velocity, mean velocity, and root mean square velocity can be calculated. Molecules of different gases can be compared. 5 Minute Preview
B.1.2: : Explain the functioning of common methods and devices designed to control the transfer of thermal energy
B.1.2.C: : describe the variation in absorption/loss of heat (specific heat capacity) of a substance being heated or cooled, by manipulating variables that include the amount and type of material (e.g., motor oil, cooking oil, water)
Calorimetry Lab
Investigate how calorimetry can be used to find relative specific heat values when different substances are mixed with water. Modify initial mass and temperature values to see effects on the system. One or any combination of the substances can be mixed with water. A dynamic graph (temperature vs. time) shows temperatures of the individual substances after mixing. 5 Minute Preview
Energy Conversion in a System
A falling cylinder is attached to a rotating propeller that stirs and heats the water in a beaker. The mass and height of the cylinder, as well as the quantity and initial temperature of water can be adjusted. The temperature of the water is measured as energy is converted from one form to another. 5 Minute Preview
B.1.3: : Describe and compare simple machines as devices that transfer energy and multiply forces or distances
B.1.3.A: : analyze and describe simple machines as devices that transfer energy (e.g., screws, ramps, hammers, hockey sticks, tennis rackets)
Inclined Plane - Simple Machine
Investigate how an inclined plane redirects and reduces the force pulling a brick downward, with or without friction. A toy car can apply a variable upward force on the brick, and the mechanical advantage and efficiency of the plane can be determined. A graph of force versus distance illustrates the concept of work. 5 Minute Preview
Pulley Lab
Use a pulley system to lift a heavy weight to a certain height. Measure the force required to lift the weight using up to three fixed and three movable pulleys. The weight to be lifted and the efficiency of the pulley system can be adjusted, and the height of the weight and the total input distance are reported. 5 Minute Preview
B.1.3.B: : identify the joule and the newton metre as the units of energy and work in the International System of Units (SI)
Pulley Lab
Use a pulley system to lift a heavy weight to a certain height. Measure the force required to lift the weight using up to three fixed and three movable pulleys. The weight to be lifted and the efficiency of the pulley system can be adjusted, and the height of the weight and the total input distance are reported. 5 Minute Preview
B.1.3.C: : analyze and describe simple machines as either force multipliers or distance multipliers
Pulley Lab
Use a pulley system to lift a heavy weight to a certain height. Measure the force required to lift the weight using up to three fixed and three movable pulleys. The weight to be lifted and the efficiency of the pulley system can be adjusted, and the height of the weight and the total input distance are reported. 5 Minute Preview
B.1.3.D: : describe all simple machines as having an input force, an output force and a fulcrum (e.g., pulleys, doorknobs, winches)
Pulley Lab
Use a pulley system to lift a heavy weight to a certain height. Measure the force required to lift the weight using up to three fixed and three movable pulleys. The weight to be lifted and the efficiency of the pulley system can be adjusted, and the height of the weight and the total input distance are reported. 5 Minute Preview
B.1.3.E: : develop the relationship Fd, by measuring the force (F) applied to the object and the distance (d) the object is moved in the direction in which the force is applied (e.g., use a balance beam [teeter-totter] to establish equilibrium, placing differing masses at various distances)
Free-Fall Laboratory
Investigate the motion of an object as it falls to the ground. A variety of objects can be compared, and their motion can be observed in a vacuum, in normal air, and in denser air. The position, velocity, and acceleration are measured over time, and the forces on the object can be displayed. Using the manual settings, the mass, radius, height, and initial velocity of the object can be adjusted, as can the air density and wind. 5 Minute Preview
B.1.3.F: : explain the functioning of common household machines, in terms of force multipliers and ways in which work is made easier (e.g., can openers, crowbars, car jacks, scissors and hedge clippers)
Pulley Lab
Use a pulley system to lift a heavy weight to a certain height. Measure the force required to lift the weight using up to three fixed and three movable pulleys. The weight to be lifted and the efficiency of the pulley system can be adjusted, and the height of the weight and the total input distance are reported. 5 Minute Preview
B.2: : Skill Outcomes (focus on problem solving)
B.2.1: : Initiating and Planning
B.2.1.A: : Ask questions about relationships between and among observable variables, and plan investigations to address those questions
B.2.1.A.1: : rephrase questions in a testable form, and clearly define practical problems (e.g., "How is the human body analogous to a machine?")
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
B.2.1.A.2: : identify questions to investigate arising from practical problems and issues (e.g., investigate the functioning of common machines, such as car jacks, can and bottle openers, meat grinders, bicycles, ramps and others, that either change the direction, speed or magnitude of a force)
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
B.2.1.A.5: : design an experiment, and identify major variables (e.g., design an experiment to compare temperature changes in different liquids as they are heated, identifying variables and controls; write a procedure, design the observation tables or charts, and identify possible sources of error and their effects on the results)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Real-Time Histogram
Try to click your mouse once every 2 seconds. The time interval between each click is recorded, as well as the error and percent error. Data can be displayed in a table, histogram, or scatter plot. Observe and measure the characteristics of the resulting distribution when large amounts of data are collected. 5 Minute Preview
B.2.2: : Performing and Recording
B.2.2.A: : Conduct investigations into the relationships between and among observations, and gather and record qualitative and quantitative data
B.2.2.A.2: : use instruments effectively and accurately for collecting data (e.g., collect data on daily household energy consumption by recording electricity and gas meter readings over a two-week period; organize, display and analyze the data)
Triple Beam Balance
Learn how to determine the mass of an object using a triple beam balance. The mass of a variety of objects can be determined using this simulated version of a common real-world laboratory tool for measurement. 5 Minute Preview
B.2.3: : Analyzing and Interpreting
B.2.3.A: : Analyze qualitative and quantitative data, and develop and assess possible explanations
B.2.3.A.1: : interpret patterns and trends in data, and infer and explain relationships among the variables (e.g., suggest the reasons for daily fluctuations in domestic energy consumption)
Determining a Spring Constant
Place a pan on the end of a hanging spring. Measure how much the spring stretches when various masses are added to the pan. Create a graph of displacement vs. mass to determine the spring constant of the spring. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
B.2.3.A.3: : identify and evaluate potential applications of findings (e.g., perform an experiment to investigate how well various materials insulate; graph temperature changes; rank commonly available insulating materials from the most to the least effective, for constructing a heatretaining device)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
B.2.3.A.4: : test the design of a constructed device or system (e.g., construct a model wall, roof, floor or window to test the effectiveness of several methods of insulating homes; evaluate insulating materials, such as brick, stone, straw, wood or paper)
Trebuchet
Design your own trebuchet to fling a projectile at a castle wall. All of the dimensions of the trebuchet can be adjusted, as well as the masses of the counterweight and payload. Select a target on the Launch tab, or just see how far your projectile will go. 5 Minute Preview
B.2.3.A.6: : evaluate designs and prototypes in terms of function, reliability, safety, efficiency, use of materials and impact on the environment (e.g., test insulating materials and methods; determine the efficiency of a machine)
Trebuchet
Design your own trebuchet to fling a projectile at a castle wall. All of the dimensions of the trebuchet can be adjusted, as well as the masses of the counterweight and payload. Select a target on the Launch tab, or just see how far your projectile will go. 5 Minute Preview
B.2.4: : Communication and Teamwork
B.2.4.A: : Work collaboratively on problems; and use appropriate language and formats to communicate ideas, procedures and results
B.2.4.A.2: : communicate questions, ideas, intentions, plans and results, using lists, notes in point form, sentences, data tables, graphs, drawings, oral language and other means (e.g., draw diagrams that show the differences between particles in solids, liquids and gases; communicate using the terms thermal energy, temperature and specific heat capacity; observe and accurately record the movement of dye in a convection tank)
Graphing Skills
Create a graph (bar graph, line graph, pie chart, or scatter plot) based on a given data set. Title the graph, label the axes, and choose a scale. Adjust the graph to fit the data, and then check your accuracy. The Gizmo can also be used to create a data table based on a given graph. 5 Minute Preview
Identifying Nutrients
Use a variety of real-world lab tests to analyze common food samples in order to determine if the food is a carbohydrate, a protein, or a lipid. Tests that can be performed include: Benedict, Lugol, Biuret, and Sudan Red. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
B.3: : Attitude Outcomes
B.3.5: : Stewardship
B.3.5.A: : Demonstrate sensitivity and responsibility in pursuing a balance between the needs of humans and a sustainable environment (e.g., promote actions and technologies that are not injurious to the environment; consider the impact of technology, weighing scientific, technological and ecological factors)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
C: : Investigating Matter and Energy in Living Systems (Science and Technology Emphasis)
C.1: : Science, Technology and Society (STS) and Knowledge
C.1.1: : Describe, in general terms, the exchange of matter by the digestive and circulatory systems, the functional relationship between the two systems and the need for a healthy diet and lifestyle
C.1.1.D: : describe, in general terms, the intake of matter and its processing by the digestive system (e.g., foods are broken down into molecules that are absorbed into the blood stream from the intestine; food intake leads to increased blood sugar and mineral levels)
Digestive System
Digestion is a complex process, involving a wide variety of organs and chemicals that work together to break down food, absorb nutrients, and eliminate wastes. But have you ever wondered what would happen if some of those organs were eliminated, or if the sequence was changed? Can the digestive system be improved? Find out by designing your own digestive system with the Digestive System Gizmo. 5 Minute Preview
C.1.1.E: : describe, in general terms, the role of the heart and lungs in the circulatory system and in the exchange and distribution of matter processed by the digestive system
Circulatory System
Trace the path of blood through a beating heart and the network of blood vessels that supplies blood to the body. Take blood samples from different blood vessels to observe blood cells and measure the levels of oxygen, carbon dioxide, sugar, and urea. 5 Minute Preview
Digestive System
Digestion is a complex process, involving a wide variety of organs and chemicals that work together to break down food, absorb nutrients, and eliminate wastes. But have you ever wondered what would happen if some of those organs were eliminated, or if the sequence was changed? Can the digestive system be improved? Find out by designing your own digestive system with the Digestive System Gizmo. 5 Minute Preview
C.1.1.F: : analyze the functional relationship between the digestive and circulatory systems, recognizing the work of early physicians (e.g., William Harvey, Ivan Pavlov, William Beaumont)
Circulatory System
Trace the path of blood through a beating heart and the network of blood vessels that supplies blood to the body. Take blood samples from different blood vessels to observe blood cells and measure the levels of oxygen, carbon dioxide, sugar, and urea. 5 Minute Preview
Digestive System
Digestion is a complex process, involving a wide variety of organs and chemicals that work together to break down food, absorb nutrients, and eliminate wastes. But have you ever wondered what would happen if some of those organs were eliminated, or if the sequence was changed? Can the digestive system be improved? Find out by designing your own digestive system with the Digestive System Gizmo. 5 Minute Preview
C.1.2: : Describe disorders of the digestive and circulatory systems as imbalances induced by genetic, lifestyle and environmental factors
C.1.2.A: : describe, in general terms, how the digestive and circulatory systems interact to assist in the maintenance of balance (homeostasis) in the human organism
Circulatory System
Trace the path of blood through a beating heart and the network of blood vessels that supplies blood to the body. Take blood samples from different blood vessels to observe blood cells and measure the levels of oxygen, carbon dioxide, sugar, and urea. 5 Minute Preview
C.1.2.D: : analyze and explain, in general terms, a technology that is used to diagnose imbalances (e.g., endoscope, stethoscope) or to intervene and preserve balance (homeostasis) (e.g., kidney dialysis machine, pacemaker)
Homeostasis - High School
In the role of a physician assistant, students help a young man, named Anthony, who has Type II diabetes and high blood pressure. Students must make a diagnosis and then must apply the principles of filtration and homeostasis to help Anthony. Video Preview
Osmosis - High School
As a veterinarian, students help a young calf, named Clark, who is having seizures. To determine the cause, the students fly into Clark's brain to learn about osmosis and apply their learning to save Clark. Video Preview
C.1.3: : Describe, in general terms, the structure and function of plant and animal cell parts; and trace the development of the cell theory
C.1.3.B: : describe the structure of the major parts of plant and animal cells, including the cell membrane, nucleus, vacuole, mitochondrion, chloroplast and cell wall
Cell Energy Cycle
Explore the processes of photosynthesis and respiration that occur within plant and animal cells. The cyclical nature of the two processes can be constructed visually, and the simplified photosynthesis and respiration formulae can be balanced. 5 Minute Preview
Cell Types
Explore a wide variety of cells, from bacteria to human neurons, using a compound light microscope. Select a sample to study, then focus on the sample using the coarse and fine focus controls of the microscope. Compare the structures found in different cells, then perform tests to see if the sample is alive. 5 Minute Preview
Paramecium Homeostasis
Observe how a paramecium maintains stable internal conditions in a changing aquatic environment. Water moves into the organism by osmosis, and is pumped out by the contractile vacuole. The concentration of solutes in the water will determine the rate of contractions in the paramecium. 5 Minute Preview
RNA and Protein Synthesis
Go through the process of synthesizing proteins through RNA transcription and translation. Learn about the many steps involved in protein synthesis including: unzipping of DNA, formation of mRNA, attaching of mRNA to the ribosome, and linking of amino acids to form a protein. 5 Minute Preview
C.1.3.C: : describe, using analogies where appropriate, the functions of the major parts of plant and animal cells, including the cell membrane, nucleus, vacuole, mitochondrion, chloroplast and cell wall (e.g., compare cell functions to the functioning of a city)
Cell Energy Cycle
Explore the processes of photosynthesis and respiration that occur within plant and animal cells. The cyclical nature of the two processes can be constructed visually, and the simplified photosynthesis and respiration formulae can be balanced. 5 Minute Preview
Cell Types
Explore a wide variety of cells, from bacteria to human neurons, using a compound light microscope. Select a sample to study, then focus on the sample using the coarse and fine focus controls of the microscope. Compare the structures found in different cells, then perform tests to see if the sample is alive. 5 Minute Preview
Paramecium Homeostasis
Observe how a paramecium maintains stable internal conditions in a changing aquatic environment. Water moves into the organism by osmosis, and is pumped out by the contractile vacuole. The concentration of solutes in the water will determine the rate of contractions in the paramecium. 5 Minute Preview
RNA and Protein Synthesis
Go through the process of synthesizing proteins through RNA transcription and translation. Learn about the many steps involved in protein synthesis including: unzipping of DNA, formation of mRNA, attaching of mRNA to the ribosome, and linking of amino acids to form a protein. 5 Minute Preview
C.1.4: : Identify and compare, in general terms, the life functions common to living systems, from cells to organ systems
C.1.4.A: : describe the relationship between photosynthesis and cellular respiration in terms of biological energy storage; i.e., capture of energy from the Sun in glucose during photosynthesis, and the release of energy from glucose during respiration
Cell Energy Cycle
Explore the processes of photosynthesis and respiration that occur within plant and animal cells. The cyclical nature of the two processes can be constructed visually, and the simplified photosynthesis and respiration formulae can be balanced. 5 Minute Preview
Photosynthesis - High School
As a marine biologist students learn about photosynthesis to help scientists in Australia determine why the coral in the Great Barrier Reef is bleaching. Video Preview
C.1.4.C: : identify organs and systems in plants and animals that carry out the above life functions
Circulatory System
Trace the path of blood through a beating heart and the network of blood vessels that supplies blood to the body. Take blood samples from different blood vessels to observe blood cells and measure the levels of oxygen, carbon dioxide, sugar, and urea. 5 Minute Preview
Digestive System
Digestion is a complex process, involving a wide variety of organs and chemicals that work together to break down food, absorb nutrients, and eliminate wastes. But have you ever wondered what would happen if some of those organs were eliminated, or if the sequence was changed? Can the digestive system be improved? Find out by designing your own digestive system with the Digestive System Gizmo. 5 Minute Preview
C.1.4.D: : identify the major human organ systems that perform critical life functions; i.e., energy conversion, response to the environment, growth, reproduction, and conservation or dissipation of thermal energy
Circulatory System
Trace the path of blood through a beating heart and the network of blood vessels that supplies blood to the body. Take blood samples from different blood vessels to observe blood cells and measure the levels of oxygen, carbon dioxide, sugar, and urea. 5 Minute Preview
Digestive System
Digestion is a complex process, involving a wide variety of organs and chemicals that work together to break down food, absorb nutrients, and eliminate wastes. But have you ever wondered what would happen if some of those organs were eliminated, or if the sequence was changed? Can the digestive system be improved? Find out by designing your own digestive system with the Digestive System Gizmo. 5 Minute Preview
Human Homeostasis
Adjust the levels of clothing, perspiration, and exercise to maintain a stable internal temperature as the external temperature changes. Water and blood sugar levels need to be replenished regularly, and fatigue occurs with heavy exercise. Severe hypothermia, heat stroke, or dehydration can result if internal stability is not maintained. 5 Minute Preview
C.1.4.F: : identify and describe the role of modern technology in monitoring critical life functions in humans (e.g., ultrasound, heart monitor, blood pressure cuff, blood glucose monitoring devices)
Human Karyotyping
Sort and pair the images of human chromosomes obtained in a scan. Find differences in the scans of the various patients to find out specific things that can cause disease, as well as determining the sex of the person. 5 Minute Preview
C.2: : Skill Outcomes (focus on problem solving)
C.2.1: : Initiating and Planning
C.2.1.A: : Ask questions about relationships between and among observable variables, and plan investigations to address those questions
C.2.1.A.1: : rephrase questions in a testable form, and clearly define practical problems (e.g., "Is there a relationship between social attitudes and diet?", "What design features would a device have in order to listen to a heart beat?")
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
C.2.1.A.2: : identify questions to investigate arising from practical problems and issues (e.g., plan and conduct a search, using a wide variety of electronic sources, when investigating technology used to monitor critical life functions)
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
C.2.2: : Performing and Recording
C.2.2.A: : Conduct investigations into the relationships between and among observations, and gather and record qualitative and quantitative data
C.2.2.A.1: : carry out procedures, controlling the major variables (e.g., perform experiments that demonstrate diffusion rate, and communicate this information graphically; identify the manipulated, responding and controlled variables for an experimental investigation of the effect of exercise on heart rate)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Real-Time Histogram
Try to click your mouse once every 2 seconds. The time interval between each click is recorded, as well as the error and percent error. Data can be displayed in a table, histogram, or scatter plot. Observe and measure the characteristics of the resulting distribution when large amounts of data are collected. 5 Minute Preview
C.2.2.A.3: : use instruments effectively and accurately for collecting data (e.g., prepare wet mounts of tissue, and observe cellular structures specific to plant cells and animal cells; observe structures using photomicrographs or electron micrographs)
Triple Beam Balance
Learn how to determine the mass of an object using a triple beam balance. The mass of a variety of objects can be determined using this simulated version of a common real-world laboratory tool for measurement. 5 Minute Preview
C.2.2.A.4: : organize data, using a format that is appropriate to the task or experiment (e.g., determine the nutrient components in popular diets)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Seed Germination
Perform experiments with several seed types to see what conditions yield the highest germination (sprouting) rate. Three different types of seeds can be studied, and the temperature, water and light in the germination chamber can be controlled. No two trials will have the same result so repeated trials are recommended. 5 Minute Preview
C.2.3: : Analyzing and Interpreting
C.2.3.A: : Analyze qualitative and quantitative data, and develop and assess possible explanations
C.2.3.A.1: : state a conclusion, based on experimental data, and explain how evidence gathered supports or refutes an initial idea (e.g., observe cytoplasmic streaming in the paramecium, and compare this method of matter distribution to that in multicellular living systems, such as the human organism; observe the feeding behaviour of paramecium, and compare this to the processes that occur in the human organism)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
C.2.3.A.2: : critique the design of a constructed device or system (e.g., model of cell, stethoscope)
Trebuchet
Design your own trebuchet to fling a projectile at a castle wall. All of the dimensions of the trebuchet can be adjusted, as well as the masses of the counterweight and payload. Select a target on the Launch tab, or just see how far your projectile will go. 5 Minute Preview
C.2.3.A.4: : evaluate designs and prototypes in terms of function, reliability, safety, efficiency, use of materials and impact on the environment (e.g., a device built to monitor life functions)
Trebuchet
Design your own trebuchet to fling a projectile at a castle wall. All of the dimensions of the trebuchet can be adjusted, as well as the masses of the counterweight and payload. Select a target on the Launch tab, or just see how far your projectile will go. 5 Minute Preview
C.2.4: : Communication and Teamwork
C.2.4.A: : Work collaboratively on problems; and use appropriate language and formats to communicate ideas, procedures and results
C.2.4.A.2: : communicate questions, ideas, intentions, plans and results, using lists, notes in point form, sentences, data tables, graphs, drawings, oral language and other means (e.g., research and identify the cause and physiological basis of a specific disorder in one of the systems studied; present this information orally to peers or in a document, using style sheets and with attention to page layout that incorporates advanced word processing techniques, including headers, footers, margins, columns, bibliography, index, table of contents)
Identifying Nutrients
Use a variety of real-world lab tests to analyze common food samples in order to determine if the food is a carbohydrate, a protein, or a lipid. Tests that can be performed include: Benedict, Lugol, Biuret, and Sudan Red. 5 Minute Preview
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
C.3: : Attitude Outcomes
C.3.5: : Stewardship
C.3.5.A: : Demonstrate sensitivity and responsibility in pursuing a balance between the needs of humans and a sustainable environment (e.g., consider all perspectives when addressing issues, weighing scientific, technological and ecological factors)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
D: : Investigating Matter and Energy in the Environment (Social and Environmental Emphasis)
D.1: : Science, Technology and Society (STS) and Knowledge
D.1.1: : Describe how the flow of matter in the biosphere is cyclical along characteristic pathways and can be disrupted by human activity
D.1.1.A: : explain the role of living systems in the cycling of matter in the biosphere (e.g., food chains)
Cell Energy Cycle
Explore the processes of photosynthesis and respiration that occur within plant and animal cells. The cyclical nature of the two processes can be constructed visually, and the simplified photosynthesis and respiration formulae can be balanced. 5 Minute Preview
Food Chain
In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased at any time, just like in the real world. 5 Minute Preview
D.1.1.D: : describe, in general terms, how water, carbon, oxygen and nitrogen are cycled through the biosphere
Carbon Cycle
Follow the path of a carbon atom through the atmosphere, biosphere, hydrosphere, and geosphere. Manipulate a simplified model to see how human activities and other factors affect the amount of atmospheric carbon today and in the future. 5 Minute Preview
Cell Energy Cycle
Explore the processes of photosynthesis and respiration that occur within plant and animal cells. The cyclical nature of the two processes can be constructed visually, and the simplified photosynthesis and respiration formulae can be balanced. 5 Minute Preview
D.1.1.E: : explain why the flow of energy through the biosphere is linear and noncyclical
Food Chain
In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased at any time, just like in the real world. 5 Minute Preview
D.1.2: : Analyze a local ecosystem in terms of its biotic and abiotic components, and describe factors of the equilibrium
D.1.2.B: : define ecosystems in terms of biotic and abiotic factors (e.g., common plants and animals, latitude, altitude, topography)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
Coral Reefs 2 - Biotic Factors
In this followup to the Coral Reefs 1 - Abiotic Factors activity, investigate the impacts of fishing, disease, and invasive species on a model Caribbean coral reef. Many variables can be manipulated, included intensity of fishing, presence of black band and white band disease, and the presence of actual and potential invasive species. Click "Advance year" to see the impacts of these biotic changes. 5 Minute Preview
D.1.2.C: : describe how various abiotic factors influence biodiversity in an ecosystem (e.g., climate, substrate, temperature, elevation)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
D.1.2.D: : explain how biotic relationships can be explained in terms of the movement of matter and energy, using food chains, food webs and energy pyramids
Cell Energy Cycle
Explore the processes of photosynthesis and respiration that occur within plant and animal cells. The cyclical nature of the two processes can be constructed visually, and the simplified photosynthesis and respiration formulae can be balanced. 5 Minute Preview
Food Chain
In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased at any time, just like in the real world. 5 Minute Preview
Forest Ecosystem
Observe and manipulate the populations of four creatures (trees, deer, bears, and mushrooms) in a forest. Investigate the feeding relationships (food web) in the forest. Determine which creatures are producers, consumers, and decomposers. Pictographs and line graphs show changes in populations over time. 5 Minute Preview
D.1.2.E: : explain how various factors influence the size of populations; i.e., immigration and emigration, birth and death rates, food supply, predation, disease, reproductive rate, number of offspring produced, and climate change
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
Coral Reefs 2 - Biotic Factors
In this followup to the Coral Reefs 1 - Abiotic Factors activity, investigate the impacts of fishing, disease, and invasive species on a model Caribbean coral reef. Many variables can be manipulated, included intensity of fishing, presence of black band and white band disease, and the presence of actual and potential invasive species. Click "Advance year" to see the impacts of these biotic changes. 5 Minute Preview
Food Chain
In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased at any time, just like in the real world. 5 Minute Preview
D.1.2.F: : describe how interactions among organisms limit populations (e.g., predation, parasitism, competition)
Food Chain
In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased at any time, just like in the real world. 5 Minute Preview
D.1.2.H: : describe the relationship between land use practices and altering ecosystems (e.g., swamp drainage, slash and burn forestry, agriculture)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
D.2: : Skill Outcomes (focus on the use of research and inquiry skills to inform the decision-making process)
D.2.1: : Initiating and Planning
D.2.1.A: : Ask questions about relationships between and among observable variables, and plan investigations to address those questions
D.2.1.A.1: : identify questions to investigate arising from practical problems and issues (e.g., develop questions related to recycling, ozone depletion or introduction of exotic species)
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
Nitrogen Cycle - High School
An infant on a farm has blue baby syndrome. As an EPA environmental engineer, students must find the cause of the baby's illness. Using environment data, students learn the importance of the nitrogen cycle and how human factors can impact nature. Video Preview
D.2.1.A.2: : define questions and problems to facilitate investigation (e.g., develop questions to guide investigations on composting, recycling, impact of farming practices on local ecosystems)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Sight vs. Sound Reactions
Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user. 5 Minute Preview
D.2.1.A.3: : design an experiment; and identify the manipulated, responding and controlled variables (e.g., investigate the amount of waste materials produced by a school or family on a daily or weekly basis)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Real-Time Histogram
Try to click your mouse once every 2 seconds. The time interval between each click is recorded, as well as the error and percent error. Data can be displayed in a table, histogram, or scatter plot. Observe and measure the characteristics of the resulting distribution when large amounts of data are collected. 5 Minute Preview
D.2.1.A.4: : select appropriate methods and tools for collecting data and information to solve problems (e.g., plan and conduct a search for environmental projects, using a wide variety of electronic sources)
Triple Beam Balance
Learn how to determine the mass of an object using a triple beam balance. The mass of a variety of objects can be determined using this simulated version of a common real-world laboratory tool for measurement. 5 Minute Preview
D.2.2: : Performing and Recording
D.2.2.A: : Conduct investigations into the relationships between and among observations, and gather and record qualitative and quantitative data
D.2.2.A.1: : carry out procedures, controlling the major variables (e.g., perform quantitative experiments to demonstrate that cellular respiration releases some thermal energy)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
Real-Time Histogram
Try to click your mouse once every 2 seconds. The time interval between each click is recorded, as well as the error and percent error. Data can be displayed in a table, histogram, or scatter plot. Observe and measure the characteristics of the resulting distribution when large amounts of data are collected. 5 Minute Preview
D.2.2.A.3: : organize data, using a format that is appropriate to the task or experiment (e.g., analyze the biotic and abiotic data collected in an ecosystem study, and present this information in a written or graphic format or in an oral presentation to peers)
Diffusion
Explore the motion of particles as they bounce around from one side of a room to the other through an adjustable gap or partition. The mass of the particles can be adjusted, as well as the temperature of the room and the initial number of particles. In a real-world context, this can be used to learn about how odors travel, fluids move through gaps, the thermodynamics of gases, and statistical probability. 5 Minute Preview
Seed Germination
Perform experiments with several seed types to see what conditions yield the highest germination (sprouting) rate. Three different types of seeds can be studied, and the temperature, water and light in the germination chamber can be controlled. No two trials will have the same result so repeated trials are recommended. 5 Minute Preview
D.2.3: : Analyzing and Interpreting
D.2.3.A: : Analyze qualitative and quantitative data, and develop and assess possible explanations
D.2.3.A.1: : compile and display data, by hand or computer, in a variety of formats, including diagrams, flow charts, tables, bar graphs, line graphs and scatterplots (e.g., analyze population growth curve graphs; communicate information on the flow of energy through the biosphere, using a diagram or flow chart)
Identifying Nutrients
Use a variety of real-world lab tests to analyze common food samples in order to determine if the food is a carbohydrate, a protein, or a lipid. Tests that can be performed include: Benedict, Lugol, Biuret, and Sudan Red. 5 Minute Preview
D.2.3.A.5: : identify and evaluate potential applications of findings (e.g., experimentally determine the biodegradability of various forms of organic matter, and relate findings to composting and recycling)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
D.2.4: : Communication and Teamwork
D.2.4.A: : Work collaboratively on problems; and use appropriate language and formats to communicate ideas, procedures and results
D.2.4.A.2: : communicate questions, ideas, intentions, plans and results, using lists, notes in point form, sentences, data tables, graphs, drawings, oral language and other means (e.g., represent the movement of matter and energy in an ecosystem, using food chains, webs or pyramids, and communicate this information in the form of a graphic illustration; describe the biogeochemical cycles of carbon, nitrogen or oxygen, and communicate this information in clearly labelled charts, models or diagrams)
Identifying Nutrients
Use a variety of real-world lab tests to analyze common food samples in order to determine if the food is a carbohydrate, a protein, or a lipid. Tests that can be performed include: Benedict, Lugol, Biuret, and Sudan Red. 5 Minute Preview
D.2.4.A.4: : evaluate individual and group processes used in planning, problem solving, decision making and completing a task (e.g., evaluate group brainstorming ideas for environmental projects)
Pendulum Clock
Find the effect of length, mass, and angle on the period of a pendulum. The pendulum is attached to a clock that can be adjusted to tell time accurately. The clock can be located on Earth or Jupiter to determine the effect of gravity. 5 Minute Preview
D.3: : Attitude Outcomes
D.3.5: : Stewardship
D.3.5.A: : Demonstrate sensitivity and responsibility in pursuing a balance between the needs of humans and a sustainable environment (e.g., examine their personal role in the preservation of the environment; make personal decisions based on feelings of responsibility toward less privileged parts of the global community and toward future generations; participate in the social and political systems that influence environmental policy in their community)
Coral Reefs 1 - Abiotic Factors
Explore the abiotic factors that affect Caribbean coral reefs. Many factors can be manipulated in this simplified reef model, including ocean temperature and pH, storm severity, and input of excess sediments and nutrients from logging, sewage, and agriculture. Click "Advance year" to see how the reef responds to these changes. 5 Minute Preview
Correlation last revised: 9/16/2020
About STEM Cases
Students assume the role of a scientist trying to solve a real world problem. They use scientific practices to collect and analyze data, and form and test a hypothesis as they solve the problems.
Each STEM Case uses realtime reporting to show live student results.
Introduction to the Heatmap
STEM Cases take between 30-90 minutes for students to complete, depending on the case.
Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.
Multiple grade-appropriate versions, or levels, exist for each STEM Case.
Each STEM Case level has an associated Handbook. These are interactive guides that focus on the science concepts underlying the case.
How Free Gizmos Work
Start teaching with 20-40 Free Gizmos. See the full list.
Access lesson materials for Free Gizmos including teacher guides, lesson plans, and more.
All other Gizmos are limited to a 5 Minute Preview and can only be used for 5 minutes a day.
Free Gizmos change each semester. The new collection will be available January 1 and July 1.
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