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In this activity, learners create a model of a hot air balloon using tissue paper and a hairdryer. Educators can use this activity to introduce learners to density and its role in why things float.

In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

What keeps bubbles and other things, like airplanes, floating or flying in the air?

"Molecules in Motion" explores how materials behave and change in a vacuum.

In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.

In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.

The "Rocket Reactions" activity is an exciting way to learn about how materials interact, behave, and change.