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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.

As Straight as a Pole
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In this engineering activity (page 3 of PDF), young learners investigate how a pole can be made stable by “planting” its base in the ground or adding supports to the base.

Design a Park
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In this activity, learners are invited to imagine the park of their dreams!

Lever Cowboy
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.

Build A Treetop Walkway
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Build and test a scale model of a rainforest canopy walkway.

Nano Latch-n-Catch
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In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.