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In this chemistry activity, learners explore the amount of copper in a new penny. Learners use toilet bowl cleaner to hollow out the interior of a penny with zinc inside.

Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.

In this physics activity, learners will explore buoyancy.

In this experiment, learners float colored ice cubes in hot and cold water.

Using simple, inexpensive items, learners build and test submarine models.