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In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes.

In this hands-on activity, learners make the world's simplest Cartesian diver, using only a plastic bottle, some water, and a condiment packet.

In this activity, learners create models of ionic compounds and observe the chemical formula of binary molecules they have created.

Can you deceive your eyes? When your eyes work normally, you see a nice 3 dimensional picture, but what happens when each eye sees something different?