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OpenSciEd Chemistry (2023)
1: Unit C.1 How can we slow the flow of energy on Earth to protect vulnerable coastal communities?
1.2: Lesson 2: What can the past help us figure out about what is causing sea level rise in the present?
Greenhouse Effect
Within this simulated region of land, daytime's rising temperature and the falling temperature at night can be measured, along with heat flow in and out of the system. The level of greenhouse gases present in the atmosphere at any given time can be adjusted, allowing the long-term effects to be investigated. 5 Minute Preview
Greenhouse Effect - Metric
Within this simulated region of land, daytime's rising temperature and the falling temperature at night can be measured, along with heat flow in and out of the system. The amount of greenhouse gases present in the atmosphere can be adjusted through time, and the long-term effects can be investigated. 5 Minute Preview
Hydrologic Cycle - High School
Paanee, a city in Northeast India, has been experiencing higher rates of flooding than normal. This surge in flooding has been caused by an increase in the hydrologic cycle’s activity. Students take on the role of a hydrologist to investigate why the hydrologic cycle’s rate has increased and what can be done to manage flooding and reduce flooding. Video Preview
1.3: Lesson 3: How does carbon dioxide contribute to climate change?
Greenhouse Effect
Within this simulated region of land, daytime's rising temperature and the falling temperature at night can be measured, along with heat flow in and out of the system. The level of greenhouse gases present in the atmosphere at any given time can be adjusted, allowing the long-term effects to be investigated. 5 Minute Preview
Greenhouse Effect - Metric
Within this simulated region of land, daytime's rising temperature and the falling temperature at night can be measured, along with heat flow in and out of the system. The amount of greenhouse gases present in the atmosphere can be adjusted through time, and the long-term effects can be investigated. 5 Minute Preview
Hydrologic Cycle - High School
Paanee, a city in Northeast India, has been experiencing higher rates of flooding than normal. This surge in flooding has been caused by an increase in the hydrologic cycle’s activity. Students take on the role of a hydrologist to investigate why the hydrologic cycle’s rate has increased and what can be done to manage flooding and reduce flooding. Video Preview
1.6: Lesson 6: Why would some engineers want to sprinkle glass microbeads on the Arctic?
Greenhouse Effect
Within this simulated region of land, daytime's rising temperature and the falling temperature at night can be measured, along with heat flow in and out of the system. The level of greenhouse gases present in the atmosphere at any given time can be adjusted, allowing the long-term effects to be investigated. 5 Minute Preview
Greenhouse Effect - Metric
Within this simulated region of land, daytime's rising temperature and the falling temperature at night can be measured, along with heat flow in and out of the system. The amount of greenhouse gases present in the atmosphere can be adjusted through time, and the long-term effects can be investigated. 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
1.7: Lesson 7: How do feedback loops affect Earth?s systems?
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
Hydrologic Cycle - High School
Paanee, a city in Northeast India, has been experiencing higher rates of flooding than normal. This surge in flooding has been caused by an increase in the hydrologic cycle’s activity. Students take on the role of a hydrologist to investigate why the hydrologic cycle’s rate has increased and what can be done to manage flooding and reduce flooding. Video Preview
1.9: Lesson 9: Why does warm salty water sink to melt a glacier?
Convection Cells
Explore the causes of convection by heating liquid and observing the resulting motion. The location and intensity of the heat source (or sources) can be varied, as well as the viscosity of the liquid. Use a probe to measure temperature and density in different areas and observe the motion of molecules in the liquid. Then, explore real-world examples of convection cells in Earth's mantle, oceans, and atmosphere. 5 Minute Preview
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
1.1: Lesson 1: How are sea levels rising and forcing people to move?
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
Heat Transfer by Conduction
An insulated beaker of hot water is connected to a beaker of cold water with a conducting bar, and over time the temperatures of the beakers equalize as heat is transferred through the bar. Four materials (aluminum, copper, steel, and glass) are available for the bar. 5 Minute Preview
4: Unit C.4: Why are oysters dying, and how can we use chemistry to protect them?
4.1: Lesson 1: What is happening to oysters?
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.3: Lesson 3: Can carbon dioxide make the ocean more acidic?
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.4: Lesson 4: What is it about a substance that determines whether it produces more or fewer H+ or OH- ions when it is added to water?
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.5: Lesson 5: How does carbon dioxide move between the atmosphere and ocean systems to cause the water to become more acidic?
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
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.6: Lesson 6: How can acidic water become less acidic again?
Equilibrium and Concentration
Observe how reactants and products interact in reversible reactions. The initial amount of each substance can be manipulated, as well as the pressure on the chamber. The amounts, concentrations, and partial pressures of each reactant and product can be tracked over time as the reaction proceeds toward equilibrium. 5 Minute Preview
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.7: Lesson 7: How can we use what we have learned to help protect oysters?
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.8: Lesson 8: How can we figure out how much of a substance we need to neutralize acid
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
Moles
Understand the definition of a mole and determine the Avogadro constant by adding atoms or formula units to a balance until the mass in grams is equal to the atomic or formula mass. Manipulate a conceptual model to understand how the number of particles, the number of moles, and the mass are related. Then use dimensional analysis to convert between particles, moles, and mass. 5 Minute Preview
4.11: Lesson 11: How can we help oysters build shells quickly?
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
4.13: Lesson 13: How can we apply our science ideas to develop a solution to help protect oysters?
Ocean Carbon Equilibrium - High School
Mussel farmers in the Arctic Ocean have reported problems with their mussels. They have noticed that the mussel shells have eroded and become brittle. Students take on the role of a marine chemist to analyze the changes to ocean carbon chemistry and equilibrium to determine the cause of the mussel shell erosion. Video Preview
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.
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.
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