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In this activity, learners explore how engineering has developed various means to remove impurities from water.

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

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.