Students build a rubber-band-powered rover that can scramble across the room.

Students learn about scale models and distance by creating a classroom-size Earth-Moon system.

In this challenge, students will program a rover to use a color sensor on several rock samples, allowing them to simulate how the Mars Curiosity rover uses it's ChemCam instrument to analyze light emitted from geological samples on Mars.

What is sea-level rise and how does it affect us? This "Teachable Moment" looks at the science behind sea-level rise and offers lessons and tools for teaching students about this important climate topic.

In this illustrated problem set, students use pi to determine the size of a Mars dust storm, estimate the water content of a rain cloud, gauge how much Jupiter's Great Red Spot has shrunk and calculate the strength of a laser used to explode ice samples.

In this illustrated math problem, students use pi to calculate how much water could be contained within a cloud.

Students create a scale model of the solar system using beads and string.

Students will make observations of two containers and identify differences in content, justify their claims and make comparisons to dark matter observations.

Students will learn about the structure of the solar system and be able to identify analogous regions in a dynamic, 2-D kitchen-sink model.