This demonstration uses a water balloon to show how Earth's oceans are absorbing most of the heat being trapped on our warming world.

Students use a spreadsheet model to understand droughts and the movement of water in the water cycle.

Students observe the process and results of transpiration from a plant in their schoolyard.

Using real data from NASA’s GRACE satellites, students will track water mass changes in the U.S.

Students will investigate the action-reaction principal (Newton's third law of motion) by creating water-propelled engines and changing different variables to see how their engines perform.

Students work in teams employing an iterative design process to design and build a water filtration device using commonly available materials.

In this illustrated problem set, students use pi to detect frost in lunar craters, determine the density of Mars' liquid core, calculate the powered output from a dam, and find out how far a spacecraft travels as it returns data to Earth.

In this illustrated math problem, students use the mathematical constant pi to determine the water output of a dam to assess its potential environmental impact.

Student teams use the engineering design process and everyday materials to design an insulator that will keep a small amount of water from rapidly changing temperature.