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    American Association for the Advancement of Science
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    In this inquiry-based learning activity, learners design, build, and test their own ramps. They are introduced to a variety of materials and explore putting them together. They also create plans...

    $5 - $10 per group Ages 4 - 8 45 to 60 minutes
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    American Association for the Advancement of Science
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    In this activity about ramps, learners explore and measure the rate at which spherical objects roll down a ramp. Learners discuss why different ramps work better than others and practice procedures...

    $1 - $5 per group Ages 4 - 8 45 to 60 minutes
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    Worcester Polytechnic Institute
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    Groups of learners are provided with a generic car base and an egg. Their mission: design a device/enclosure to protect the egg on or in the car as it rolls down a ramp with increasing slopes....

    Over $20 per group Ages 11 - 18 1 to 2 hours
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    Twin Cities Public Television
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    In this activity (page 2 of PDF under GPS: Kinetic Sculpture Challenge Activity), learners will predict which objects have to overcome the most static friction to slide down a ramp. Learners then...

    free Ages 8 - 14 30 to 45 minutes
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    Twin Cities Public Television
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    In this activity (on page 2 of PDF under GPS: Roller Coaster Design Activity), learners will use food cans of many different properties (sizes, shapes, and weights) and set two cans on their sides...

    free Ages 8 - 14 45 to 60 minutes
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    PBS
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    In this activity, learners explore the unseen force of friction and how surfaces can slow moving objects at different rates. Learners will build ramps out of two types of materials and roll down a...

    $1 - $5 per student Ages 4 - 11 10 to 30 minutes