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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, learners explore and compare the buoyant properties of materials found in nature and in human-made materials.

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

What keeps bubbles and other things, like airplanes, floating or flying in the air?

In this activity, learners build a hovercraft using a paper plate, cup, and simple motor.