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Low-Tech Water Filter for High-Impact Clean
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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.

Exploring Size: Ball Sorter
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In this activity, learners use sieves with different-sized holes to sort balls by size.

Exploring Products: Nano Fabrics
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In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.