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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.

In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water.

In this outdoor activity, learners simulate an oil spill using popcorn (both oil and popcorn float on water), and estimate the spill's impact on the environment.