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Working in small teams, learners try to build a satellite that can float for at least five seconds in the marked area of a vertical wind tube.

Over $20 per group Ages 8 - 18 10 to 30 minutes
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Build a catapult that transforms the potential energy of a twisted rubber band into kinetic energy. Experiment with design variations so that you can hit a target with a projectile.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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In this activity about magnetism (page 15 of the PDF), learners will explore how opposite and similar magnetic poles affect a swinging (pendulum) magnet.

$5 - $10 per group Ages 6 - 14 10 to 30 minutes
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In this hands-on activity, learners use an assortment of (mainly household) items to complete Rube Goldberg-type challenges.

$1 - $5 per student Ages 4 - adult 10 to 30 minutes
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This is an activity about Newton's First Law of Motion - a body in motion tends to stay in motion, or a body at rest tends to stay at rest unless acted upon by an outside force.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes