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This activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed.

1 cent - $1 per group Ages 11 - adult 5 to 10 minutes
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In this activity, learners use simple tools to build a bookshelf with a built-in bookend.

$5 - $10 per student Ages 11 - 18 1 to 2 hours
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

$5 - $10 per group Ages 4 - adult 5 to 10 minutes
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In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes
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After a discussion about what a parachute is and how it works, learners create parachutes using different materials that they think will work best.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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The Butterflies in Space Teacher's Guide uses "life in space" to encourage learners to conduct their own open-ended scientific investigations.

Over $20 per group Ages 6 - 18 1 to 4 weeks
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Using simple materials, learners will construct the end effector (grasping device) of a robotic arm and use the device to capture and pick up an object.

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.

Over $20 per group Ages 8 - 18 1 to 2 hours
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Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners watch a video to learn about a couple who built a home out of shipping containers in Brooklyn, New York.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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This simple activity uses paper and scissors to convey two key concepts to learners: the nanoscale is very small and working on the nanoscale requires special tools.

1 cent - $1 per student Ages 6 - adult 10 to 30 minutes
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In this activity, learners build mini-basketball courts using cardboard and measuring spoons. Use this activity to introduce learners to catapults, forces, and levers.

$5 - $10 per student Ages 6 - 14 30 to 45 minutes
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In this thought-provoking activity, learners plan a hypothetical project to build and operate wind turbines in their community.

free Ages 8 - 14 2 to 4 hours
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In this meteorology activity, learners build weather vanes using straws, paperclips, and cardstock.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, groups of four learners must complete a set of four manual tasks. The restrictions are that they must complete the tasks in a limited time while wearing garden or rubber gloves.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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In this activity, teams of learners study magnetic fields at four separate stations: examining magnetic fields generated by everyday items, mapping out a magnetic field using a compass, creating model

Over $20 per group Ages 8 - 14 45 to 60 minutes
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This is a quick activity (on page 2 of the PDF under Hockey Sticks Activity) about how the arrangement of carbon atoms determines carbon's different properties.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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Learners participate in a variety of activities modeling different disabilities.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners explore how environmental engineers might approach solving the problem of an oil spill.

Over $20 per group Ages 8 - 18 1 to 2 hours