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In this activity about ramps, learners explore and measure the rate at which spherical objects roll down a ramp.

$1 - $5 per group Ages 4 - 8 45 to 60 minutes
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This guide features three related ramp explorations in which learners investigate the following science concepts: when placed on a ramp, some objects roll, others slide, and others stay put; the shape

$5 - $10 per group Ages 4 - 6 45 to 60 minutes