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

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

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

Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat.

In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow.

In this activity, learners build water-propelled engines from soft drink cans.

In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.