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Trash Traits
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In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.
Test Density with a Supersaturated Solution
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Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.
Sinking Water
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In this experiment, learners float colored ice cubes in hot and cold water.
Simple Submarine
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Using simple, inexpensive items, learners build and test submarine models.