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In this activity, learners explore how two cylinders that look the same may roll down a ramp at different rates.

In this activity, learners review the history of gumball machines and explore potential and kinetic energy, while working in teams to build a gumball slide.

This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.

In this activity, learners design, build, test and redesign a display tower that will meet a specific set of criteria and constraints.