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Balloon in a Bottle
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In this physics activity (page 3 of the PDF), learners will see firsthand that air takes up space and has pressure by attempting to inflate a balloon inside of a bottle.
That Sinking Feeling
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In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.
Test Your Lung Power
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In this activity, learners try to blow up a balloon hanging inside of an empty bottle.