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In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.

In this outdoor/indoor activity, learners collect ants and dirt to create an ant farm in a cup that they can observe over time.

In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it.

In this activity (located at the bottom of the page), learners investigate soil and explore the creatures that live in it.

In the wild, small crustaceans known as brine shrimp live in marine habitats such as saltwater lakes.