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Water Filter
Source Institutions
In this engineering activity, challenge learners to invent a water filter that cleans dirty water.
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Mechanical Grabber
Source Institutions
In this engineering activity, challenge learners to make a "grabber" that can pick up trash. Learners use simple materials to create pinchers that can grab small items.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-327.png?itok=tqZOszCw)
Puff Mobile
Source Institutions
In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.