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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 two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.

In this physics activity, learners will explore buoyancy.

In this hands-on activity, learners will construct a scuba diver that can float in order to explore how sea creatures stay neutrally buoyant in the ocean and to see what kinds of forces might be influ

The goal of this activity is to design the fastest sailboat or one that carries the most treasure.

In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.