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In this activity, learners discover how sediment is affected in an oil spill. Learners investigate the differences between heavy and light oil as well as the differences between different sediments.

Many people get water from a source deep underground, called groundwater.

This is an activity about turbidity, or the amount of sediment suspended in water.

In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.