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How is the water that comes out of our faucets made safe for consumption? Students will learn about the processes performed at water treatment facilities, and then engineer their own small scale filtration plant. Once they design their filtering system, they will observe and evaluate the quality of the water they produce. Kit contains enough materials for 15 groups: 1500g Fine Sand, 1500g Gravel, 300g Activated Charcoal, 5mL Green Food coloring, 25mL White Vinegar, 30 Coffee Filters, 1 bag Cotton Balls, 75 plastic cups, plus Teacher’s Manual and Student Study Guide copymasters.
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