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In this environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.

In this activity, learners use a model for how fishing affects marine life populations, and will construct explanations for one of the reasons why fish populations are declining.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

In this activity, learners model a population of deer and see how the number of deer changes over time.