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In this activity, learners build a simple tabletop seesaw to test how different variables (the position of the fulcrum, distance, weight) affect its balance under increasing weight loads.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this project, students explore how levers work, by making a puppet with moving limbs.

1 cent - $1 per student Ages 6 - 11 30 to 45 minutes
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In this activity, learners build their own construction cranes using tongue depressors and pushpins.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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In this activity, learners consider how a simple machine, a lever, turns a small push or pull (a small force) into a larger--or stronger--push or pull (a larger force).

Over $20 per group Ages 4 - 11 10 to 30 minutes
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In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.

1 cent - $1 per group Ages 6 - 11 30 to 45 minutes