Students explore how motion in two opposite directions appear on a position-time graph. Note: This activity requires use of a motion sensor.

In this interactive module, students explore how motion in two opposite directions appear on a position-time graph. Note: This activity requires use of a motion sensor.

Students explore the relationships between ocean surface temperature and levels of atmospheric carbon dioxide and water vapor.

Students explore how solar radiation, Earth's surface and oceans, and greenhouse gases interact to cause global warming. They can change variables to determine how much greenhouse gas emissions might need to fall to mitigate the temperature increase.

Students explore data showing how humans have changed Earth's land. They examine maps showing the distribution of sustainable agricultural land and investigate the effect of human development on agricultural lands.

This assessment checks student understanding of how gravitational force affects the velocity of an object in freefall.

Students explore the effects of gravity on objects of different masses during free fall.

In this interactive lesson, students explore the effects of gravity on objects of different masses during free fall.

Students explore the advantages and disadvantages of different energy sources for generating electricity. A particular focus is given to natural gas extracted from shale formations through the hydraulic fracturing process. At the end of the module, students will be able to compare the relative costs and benefits (abundance, ecological impacts, etc.) of different sources used for generating electricity.