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This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

In this outdoor activity, learners simulate an oil spill using popcorn (both oil and popcorn float on water), and estimate the spill's impact on the environment.

In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

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

Water treatment on a large scale enables the supply of clean drinking water to communities.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.