Fourth Graders modeled the problem and the solutions based on a New York City Environmental Protection Agency activity.
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| Straws stand for pollution. |
Make it rain on a typical urban hardscape. (We switched sprayers out. Instead we used 250 mL cup of water poured into a cup with holes.)
Next step: Measure how much rain ran off. Then use sponges to stand for features such as tree pit bioswales, green roofs, blue roofs, permanent pavers, rain water collection system.
Make it rain again. Remeasure water.
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