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In this environmental science activity about biodiversity, learners play a game to discover the effects of non-native species on an ecosystem.

In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails.

In this activity, learners survey living organisms near where they live or go to school, and create a local field guide.