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In this activity, learners play a card game that explores different size scales--macro, micro and nano.

In this activity, learners discover that a material can act differently when it's nanometer-sized.

In this activity, learners investigate what happens when you build up static electricity on plastic balls.

"Exploring the Solar System: Craters" is an active, hands-on activity that demonstrates how craters form, and what they can teach us about the history and composition of planets and moons.