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- Science: 8th Grade Knowledge and Employability
Alberta - Science: 8th Grade Knowledge and Employability
Alberta Program of Studies | Adopted: 2006
A: : The materials that we use—including natural and manufactured ones—often take the form of fluids. Students learn that such diverse substances as air, natural gas, water and oil are fluids. Students learn that the properties of individual fluids are important to their use, including such properties as density, buoyancy, viscosity and the fluid’s response to changes in temperature and pressure.
1.1: : Outcomes for Science, Technology and Society (STS) and Knowledge
A.3: : Students will: investigate and compare the properties of gases and liquids and relate variations in their viscosity, density and buoyancy
A.3.3: : compare the densities of materials and explain how the differences in density of solids, liquids and gases affect buoyancy
Density Laboratory
With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the relationship between mass, volume, density, and flotation can be investigated. The density of the liquid in the beaker can be adjusted, and a variety of objects can be studied during the investigation. 5 Minute Preview
1.2: : Skill Outcomes
A.5: : Students will: apply science-related initiating and planning skills to resolve problems, investigate issues and/or complete experiments, using appropriate technology at home, in the workplace and in the community
A.5.4: : conduct an experiment and identify the major variables (e.g., apply a known procedure to measure the solubility of different substances).
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.6: : Students will: apply science-related performing and recording skills to investigate problems, questions and issues; perform experiments; and record information using appropriate technology at home, in the workplace and in the community
A.6.4: : use instruments effectively and accurately to collect data (e.g., measure the volume of a given sample of liquid)
Measuring Volume
Measure the volume of liquids and solids using beakers, graduated cylinders, overflow cups, and rulers. Water can be poured from one container to another and objects can be added to containers. A pipette can be used to transfer small amounts of water, and a magnifier can be used to observe the meniscus in a graduated cylinder. Test your volume-measurement skills in the "Practice" mode of the Gizmo. 5 Minute Preview
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
A.6.6: : organize data, using a format that is appropriate to the task or experiment (e.g., demonstrate the use of a chart or database for organizing information).
Density Laboratory
With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the relationship between mass, volume, density, and flotation can be investigated. The density of the liquid in the beaker can be adjusted, and a variety of objects can be studied during the investigation. 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.7: : Students will: apply science-related analyzing and interpreting skills to investigations/experiments and assess personal and group performance, using appropriate technology, at home, in the workplace and in the community
A.7.1: : identify patterns and relationships in information
Density Laboratory
With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the relationship between mass, volume, density, and flotation can be investigated. The density of the liquid in the beaker can be adjusted, and a variety of objects can be studied during the investigation. 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.8: : Students will: apply science-related communication and teamwork skills to work collaboratively on problems and use appropriate language and formats to communicate ideas, procedures and results at home, in the workplace and in the community
A.8.1: : communicate questions, ideas, plans and results, using a variety of strategies (e.g., speaking and/or writing, lists, notes in point form, data tables, graphs, drawings, computer technology, presentations)
Density Laboratory
With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the relationship between mass, volume, density, and flotation can be investigated. The density of the liquid in the beaker can be adjusted, and a variety of objects can be studied during the investigation. 5 Minute Preview
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
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
B: : Living things take a variety of forms, as reflected in their structures, internal processes and ways of responding to their environments. Finding patterns within this diversity has been a major challenge in the biological sciences and has led to the development of ideas, e.g., systems, cells, structures and functions, from the study of all living things. Using these ideas, students learn to interpret life at a variety of levels, from individual cells to complex organisms. To develop their understanding, students investigate other ways that components of a living system work together and, through these studies, learn that healthy organisms—including healthy humans—function as balanced systems within a life-supporting environment.
2.1: : Outcomes for Science, Technology and Society (STS) and Knowledge
B.2: : Students will: investigate and describe the role of cells within living things
B.2.3: : distinguish between plant and animal cells (e.g., distinguish between cell walls and cell membranes)
Cell Structure
Select a sample cell from an animal, plant, or bacterium and view the cell under a microscope. Select each organelle on the image to learn more about its structure and function. Closeup views and animations of certain organelles is provided. 5 Minute Preview
B.2.4: : examine plant and animal structures and identify contributing roles of cells, tissues and organs
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
Frog Dissection
Use a scalpel, forceps, and pins to dissect realistic male and female frogs. Organs can be removed and placed into organ system diagrams. Once the dissections are complete, the frog organ systems can be compared. Zooming, rotating, and panning tools are available to examine the frog from any angle. 5 Minute Preview
B.3: : Students will: interpret the healthy function of human body systems and describe ways the body reacts to internal and external stimuli
B.3.1: : describe, in general terms, the functions of the different body systems (e.g., the respiration, digestion and excretion systems)
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
Muscles and Bones
See how muscles, bones, and connective tissue work together to allow movement. Observe how muscle contraction arises from the interactions of thin and thick filaments in muscle cells. Using what you have learned, construct an arm that can lift a weight or throw a ball. Connective tissue, muscle composition, bone length, and tendon insertion point can all be manipulated to create an arm to lift the heaviest weight or throw a ball the fastest. 5 Minute Preview
Senses
Everything we know about the world comes through our senses: sight, hearing, touch, taste, and smell. In the Senses Gizmo, explore how stimuli are detected by specialized cells, transmitted through nerves, and processed in the brain. 5 Minute Preview
B.3.2: : identify and describe the roles of organs and tissues in supporting the healthy functioning of the human body (e.g., the role of the lungs in exchanging oxygen and carbon dioxide)
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
2.2: : Skill Outcomes
B.6: : Students will: apply science-related performing and recording skills to conduct investigations into the relationships among observations and gather and record data at home, in the workplace and in the community
B.6.1: : use instruments, including microscopes, effectively and accurately to collect data (e.g., use a microscope to produce a clear image of a cell)
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
B.7: : Students will: apply science-related analyzing and interpreting skills to examine data and assess possible explanations at home, in the workplace and in the community
B.7.3: : compile and display data in a variety of formats, including diagrams, flow charts, tables and graphs (e.g., prepare charts that compare the structures of different organisms)
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
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
B.8: : Students will: apply science-related communication and teamwork skills to work collaboratively on problems and use appropriate language and formats to communicate ideas, procedures and results at home, in the workplace and in the community
B.8.1: : communicate questions, ideas, plans and results, using a variety of strategies (e.g., speaking and/or writing, lists, notes in point form, data tables, graphs, drawings, computer technology, presentations)
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
2.3: : Attitude Outcomes
B.11: : Students will be encouraged to: use scientific methods to carefully gather evidence when investigating problems and issues
Estimating Population Size
Adjust the number of fish in a lake to be tagged and the number of fish to be recaptured. Use the number of tagged fish in the catch to estimate the number of fish in the lake. 5 Minute Preview
C: : Our understanding of the world is largely based on what we see—both directly and aided by optical devices that improve and extend our vision. Such tools as the microscope and telescope have helped extend knowledge in a variety of science fields, from the study of cells and stars to studies of the nature of light itself. In learning about light, students investigate its interactions with different materials and interpret its behaviour.
3.1: : Outcomes for Science, Technology and Society (STS) and Knowledge
C.1: : Students will: investigate the nature of light and the role of optical systems in our lives
C.1.3: : investigate the effects of light and lenses on images, using microscopes, telescopes and other optical devices
Ray Tracing (Lenses)
Observe light rays that pass through a convex or concave lens. Manipulate the position of an object and the focal length of the lens and measure the distance and size of the resulting image. 5 Minute Preview
C.2: : Students will: investigate the transmission of light
C.2.1: : describe how light is reflected, refracted, transmitted and absorbed
Basic Prism
Shine white light or a single-color beam through a prism. Explore how a prism refracts light and investigate the factors that affect the amount of refraction. The index of refraction of the prism, width of the prism, prism angle, light angle, and light wavelength can be adjusted. 5 Minute Preview
Color Absorption
Mix the primary colors of light by using red, green, and blue lights. Use pieces of colored glass to filter the light and create a wide variety of colors. Determine how light is absorbed and transmitted by each color of glass. 5 Minute Preview
Eyes and Vision 1 - Seeing Color
Observe how different colors of light are reflected or absorbed by colored objects. Determine that white light is a combination of different colors of light, and that one or more component colors may be reflected when white light is shone on an object. Understand that we see an object when light reflected from the object enters our eye. 5 Minute Preview
Heat Absorption
Shine a powerful flashlight on a variety of materials, and measure how quickly each material heats up. See how the light angle, light color, type of material, and material color affect heating. A glass cover can be added to simulate a greenhouse. 5 Minute Preview
Refraction
Determine the angle of refraction for a light beam moving from one medium to another. The angle of incidence and each index of refraction can be varied. Using the tools provided, the angle of refraction can be measured, and the wavelength and frequency of the waves in each substance can be compared as well. 5 Minute Preview
C.2.2: : investigate how various materials reflect, refract, transmit and absorb light
Basic Prism
Shine white light or a single-color beam through a prism. Explore how a prism refracts light and investigate the factors that affect the amount of refraction. The index of refraction of the prism, width of the prism, prism angle, light angle, and light wavelength can be adjusted. 5 Minute Preview
Eyes and Vision 1 - Seeing Color
Observe how different colors of light are reflected or absorbed by colored objects. Determine that white light is a combination of different colors of light, and that one or more component colors may be reflected when white light is shone on an object. Understand that we see an object when light reflected from the object enters our eye. 5 Minute Preview
Laser Reflection
Point a laser at a mirror and compare the angle of the incoming beam to the angle of reflection. A protractor can be used to measure the angles of incidence and reflection, and the angle of the mirror can be adjusted. A beam splitter can be used to split the beam. Both plane and irregular mirrors can be used. 5 Minute Preview
Refraction
Determine the angle of refraction for a light beam moving from one medium to another. The angle of incidence and each index of refraction can be varied. Using the tools provided, the angle of refraction can be measured, and the wavelength and frequency of the waves in each substance can be compared as well. 5 Minute Preview
C.3: : Students will: investigate and examine the science of image formation and vision and related technologies
C.3.1: : describe, in general terms, how concave and convex lenses function
Ray Tracing (Lenses)
Observe light rays that pass through a convex or concave lens. Manipulate the position of an object and the focal length of the lens and measure the distance and size of the resulting image. 5 Minute Preview
C.3.2: : describe how the human eye and a camera are similar
Eyes and Vision 3 - Sensing Light
Observe how photoreceptors on the retina are stimulated by different colors of light. Determine that cone cells are stimulated by specific colors of light and enable us to see color, while rod cells are stimulated by various colors and do not contribute to color vision. Experiment by varying the percentage of rod and cone cells in normal and dim light to see how rod cells help with night vision. 5 Minute Preview
3.2: : Skill Outcomes
C.5: : Students will: apply science-related performing and recording skills to conduct investigations into the relationships among observations and gather and record data at home, in the workplace and in the community
C.5.2: : observe and record data and produce simple line drawings (e.g., produce a drawing of the path of a light beam toward and away from a mirror)
Eyes and Vision 3 - Sensing Light
Observe how photoreceptors on the retina are stimulated by different colors of light. Determine that cone cells are stimulated by specific colors of light and enable us to see color, while rod cells are stimulated by various colors and do not contribute to color vision. Experiment by varying the percentage of rod and cone cells in normal and dim light to see how rod cells help with night vision. 5 Minute Preview
Laser Reflection
Point a laser at a mirror and compare the angle of the incoming beam to the angle of reflection. A protractor can be used to measure the angles of incidence and reflection, and the angle of the mirror can be adjusted. A beam splitter can be used to split the beam. Both plane and irregular mirrors can be used. 5 Minute Preview
C.6: : Students will: apply science-related analyzing and interpreting skills to examine data and assess possible explanations at home, in the workplace and in the community
C.6.2: : state a conclusion, based on experimental data, and explain how evidence gathered supports or refutes an initial idea (e.g., write a conclusion based on the refraction of light through different media)
Heat Absorption
Shine a powerful flashlight on a variety of materials, and measure how quickly each material heats up. See how the light angle, light color, type of material, and material color affect heating. A glass cover can be added to simulate a greenhouse. 5 Minute Preview
Refraction
Determine the angle of refraction for a light beam moving from one medium to another. The angle of incidence and each index of refraction can be varied. Using the tools provided, the angle of refraction can be measured, and the wavelength and frequency of the waves in each substance can be compared as well. 5 Minute Preview
D: : Machines are used for many purposes in our daily lives when we need to transfer energy into motion or move materials in a controlled way. In learning about mechanical devices, students investigate how components are linked so that energy is transferred efficiently and desired functions are performed. A comparison of past and present technologies helps students recognize that different approaches have been used over time to meet common needs. Evaluations of efficiency, effectiveness and impacts on daily life, the community and the environment are important considerations in this unit.
4.1: : Outcomes for Science, Technology and Society (STS) and Knowledge
D.1: : Students will: demonstrate the development of science and technology by describing and comparing mechanical devices that have been improved over time
D.1.1: : identify the source of energy for some familiar mechanical devices
Energy of a Pendulum
Perform experiments with a pendulum to gain an understanding of energy conservation in simple harmonic motion. The mass, length, and gravitational acceleration of the pendulum can be adjusted, as well as the initial angle. The potential energy, kinetic energy, and total energy of the oscillating pendulum can be displayed on a table, bar chart or graph. 5 Minute Preview
D.2: : Students will: examine simple machines by describing the structures, functions and component parts of the overall system
D.2.1: : identify and classify a variety of simple, everyday machines and mechanical systems, including those of traditional Aboriginal societies such as travois and tipis
Ants on a Slant (Inclined Plane)
Lift food using ants with the help of a slanted stick. The steepness of the stick, the number of ants, and the size of the item being lifted can be varied. Observe the effect of friction on sliding objects. 5 Minute Preview
Levers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers. 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
Wheel and Axle
Use a wheel and axle to move a heavy load. Find out how many athletes it takes to move the load under different conditions. The radii of the wheel and the axle can be adjusted to help study mechanical advantage. 5 Minute Preview
D.2.2: : identify and classify a variety of simple machines (levers), using fulcrum, load and force
Levers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers. 5 Minute Preview
D.2.5: : identify the relationship between the design and function of simple machines and mechanical systems
Wheel and Axle
Use a wheel and axle to move a heavy load. Find out how many athletes it takes to move the load under different conditions. The radii of the wheel and the axle can be adjusted to help study mechanical advantage. 5 Minute Preview
D.2.6: : describe the mechanical advantage of using simple machines
Ants on a Slant (Inclined Plane)
Lift food using ants with the help of a slanted stick. The steepness of the stick, the number of ants, and the size of the item being lifted can be varied. Observe the effect of friction on sliding objects. 5 Minute Preview
Levers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers. 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
Wheel and Axle
Use a wheel and axle to move a heavy load. Find out how many athletes it takes to move the load under different conditions. The radii of the wheel and the axle can be adjusted to help study mechanical advantage. 5 Minute Preview
D.3: : Students will: investigate and describe the transmission of force and energy between parts of a mechanical system
D.3.1: : describe how simple machines and mechanical systems provide a mechanical advantage and influence speed and force
Ants on a Slant (Inclined Plane)
Lift food using ants with the help of a slanted stick. The steepness of the stick, the number of ants, and the size of the item being lifted can be varied. Observe the effect of friction on sliding objects. 5 Minute Preview
Levers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers. 5 Minute Preview
Wheel and Axle
Use a wheel and axle to move a heavy load. Find out how many athletes it takes to move the load under different conditions. The radii of the wheel and the axle can be adjusted to help study mechanical advantage. 5 Minute Preview
D.3.2: : recognize that work is measured in joules
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
D.4: : Students will: examine the social and environmental contexts of science and technology, as they apply to the development of mechanical devices
D.4.2: : examine the design and function of a mechanical device in relation to its efficiency and effectiveness
Ants on a Slant (Inclined Plane)
Lift food using ants with the help of a slanted stick. The steepness of the stick, the number of ants, and the size of the item being lifted can be varied. Observe the effect of friction on sliding objects. 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
4.2: : Skill Outcomes
D.7: : Students will: apply science-related analyzing and interpreting skills to examine data and assess possible explanations at home, in the workplace and in the community
D.7.1: : identify and correct the practical problems of simple machines (e.g., adjust a pulley system to lift a load)
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
D.8: : Students will: apply science-related communication and teamwork skills to work collaboratively on problems and use appropriate language and formats to communicate ideas, procedures and results at home, in the workplace and in the community
D.8.1: : use specific language that is scientifically and technologically appropriate (e.g., use such terms as system, component and function when describing a mechanical system)
Programmable Rover
In this introduction to coding, program a rover to explore the surface of Mars. Start by using tiles to create simple programs involving moving forward or backward, turns, jumps, loops, and picking up rock samples. Then use text instructions to optimize your code. Use your skills to program the rover to complete six challenging missions on Mars. 5 Minute Preview
D.8.2: : communicate questions, ideas, plans and results, using a variety of strategies (e.g., speaking and/or writing, lists, notes in point form, data tables, graphs, drawings, computer technology, presentations)
Ants on a Slant (Inclined Plane)
Lift food using ants with the help of a slanted stick. The steepness of the stick, the number of ants, and the size of the item being lifted can be varied. Observe the effect of friction on sliding objects. 5 Minute Preview
Levers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers. 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
Wheel and Axle
Use a wheel and axle to move a heavy load. Find out how many athletes it takes to move the load under different conditions. The radii of the wheel and the axle can be adjusted to help study mechanical advantage. 5 Minute Preview
E: : Earth is sometimes described as the water planet: over two-thirds of Earth’s surface is covered by oceans and freshwater features. By exploring examples of aquatic systems, students come to appreciate the dynamic nature of these systems and learn about the interaction of landforms, sediments, water and climate. Students also investigate factors that affect the distribution and health of living things in aquatic environments and the supply and quality of water for human use.
5.1: : Outcomes for Science, Technology and Society (STS) and Knowledge
E.2: : Students will: investigate the linkages among landforms, water and climate
E.2.1: : investigate and describe the water cycle
Water Cycle
Control the path of a drop of water as it travels through the water cycle. Many alternatives are presented at each stage. Determine how the water moves from one location to another, and learn how water resources are distributed in these locations. 5 Minute Preview
E.3: : Students will: examine factors affecting productivity and species distribution in marine and freshwater environments
E.3.2: : investigate examples of seasonal, short-term and long-term change in populations of living things found in aquatic environments
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
E.4: : Students will: examine human impacts on aquatic systems and identify the roles of science and technology in addressing related questions, problems and issues
E.4.4: : identify current practices and technologies that improve water quality (e.g., research alternatives for ensuring safe water supplies)
Water Contamination - Middle School
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role of a civil engineer to investigate how the water treatment plant has failed to get rid of all the contaminants in the water and design a new method. Video Preview
5.2: : Skill Outcomes
E.5: : Students will: apply science-related initiating and planning skills to ask questions about the relationships among observable variables at home, in the workplace and in the community
E.5.1: : identify science-related issues and problems
Water Contamination - Middle School
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role of a civil engineer to investigate how the water treatment plant has failed to get rid of all the contaminants in the water and design a new method. Video Preview
E.7: : Students will: apply science-related analyzing and interpreting skills to examine data and assess possible explanations at home, in the workplace and in the community
E.7.2: : interpret patterns in data and explain relationships among the variables (e.g. predict future stocks of fish based on long-term data).
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
Water Contamination - Middle School
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role of a civil engineer to investigate how the water treatment plant has failed to get rid of all the contaminants in the water and design a new method. Video Preview
Correlation last revised: 11/17/2022
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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