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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 lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).

In this math lesson (on Page 13), learners predict and simulate the likelihood of an event occurring.

In this activity, learners use a compass, powerful magnet, and copper magnet wire to build a special generator known as a dynamo.

In this environmental science lesson, learners will examine hazardous chemicals and their effects on human health and the environment.

This experiment is designed to illustrate how fluids, including water, have the ability to flow.

In this "Sid the Science Kid" activity, learners set up a simple experiment to find out how sunscreen counteracts the effects of the sun.