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Learners engage in close observation of falling objects. They determine it is the amount of air resistance, not the weight of an object, which determines how quickly an object falls.

$1 - $5 per group Ages 11 - 18 30 to 45 minutes
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In this activity, learners explore work, forces, simple machines, and construction. This lesson guide includes simple ways to demonstrate these principles as well as hands-on activities.

$1 - $5 per group Ages 4 - 8 1 to 2 hours