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In this activity, learners make models representing bones on Earth and bones that have been in space. They discover what happens to bones without proper exercise and nutrition.

In this activity, learners explore why the sky is blue. Learners model the scattering of light by the atmosphere, which creates the blue sky and red sunset, using a flashlight and clear glue sticks.

In this activity, learners explore clouds and how they form.

Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

Some bugs can walk on the surface of a lake, stream, river, pond or ocean.