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

In this chemistry activity, learners use common chemicals and metals to explore single replacement reactions.

In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.

In this activity, learners construct a simple electrolysis device. With this device, learners can decompose water into its elemental components: hydrogen and oxygen gas.