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In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink?

In this hands-on activity, learners use the steps of the design process to create a hook to rescue a "space capsule" from the water.

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

In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).

In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.