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In this engineering challenge, learners design and build a crane out of cardboard to see how heavy a load it can lift.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.

$1 - $5 per student Ages 11 - 18 45 to 60 minutes