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In this activity, learners (at least three) work together to explore the effects of atmospheric pressure.

Get all wrapped up in a lesson about skin!

In this activity, learners try to blow up a balloon hanging inside of an empty bottle.

In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod