Teach your students about the real-world importance of effective water-treatment methods that ensure we have clean water entering our rivers, lakes, and streams. Students will pollute a water sample, then test various wastewater treatment methods to observe how effective they are. The “pollutants” are actually common household items that are safe for students to use, such as detergents, bleach, and baking soda. It comes with materials for five setups, 110 VAC aerator, a teacher’s guide, and student copymasters.
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