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In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this quick activity (located on page 2 of the PDF under GPS Wetlands Activity), learners will model how wetlands act as natural filters for the environment.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.

$10 - $20 per group Ages 6 - 14 2 to 4 hours
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In this activity, learners create an origami model of DNA, demonstrating its double helix structure.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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In this activity about human anatomy (page 16 of PDF), learners construct a model arm and discover how muscles and bones work together to achieve efficient movement.

$1 - $5 per group Ages 6 - 11 45 to 60 minutes
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Investigate how force and thrust work to propel rockets into outer space. Build a rocket: a blown-up balloon taped to a drinking straw threaded through some string.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners will build a roller coaster for a marble to run on using everyday household materials such as paper towel or toilet paper rolls, cups, boxes, books, buckets, chairs, etc.

$1 - $5 per group Ages 6 - 11 30 to 45 minutes
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In this activity, learners observe colors in the flame of a burning candle to explore connections between matter, light, color and temperature -- basic concepts of matter and energy.

$1 - $5 per group Ages 14 - 18 45 to 60 minutes
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Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this activity, learners investigate the basic crystal structures that metal atoms form.

$5 - $10 per student Ages 14 - adult 45 to 60 minutes
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In this activity (Lesson 1), learners work in groups to create tide simulations.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.

1 cent - $1 per student Ages 8 - 14 30 to 45 minutes
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In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this goopy activity (page 2 of PDF under GPS: Glaciers Activity), learners will model glacial movement with “gak,” a white glue and liquid starch mixture.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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Learners act as engineers and design mini submarines that move in the water like real submarines.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this 6-7 day investigation, learners begin with an introduction to seamounts that are present in the Gulf of Alaska.

$5 - $10 per group Ages 11 - 14 1 to 7 days
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In this activity, learners create their own archaeological profiles.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes