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Working in teams of four, learners build tetrahedral kites following specific instructions and using specific materials.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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This is a quick activity (located on page 2 of the PDF under Nasturtium Leaves Activity) about surface tension.

free Ages 8 - 14 10 to 30 minutes
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In this activity exploring liquid dynamics, learners design and build a clay channel in a tray of water and then see what happens when food coloring and liquid soap are added to the mix.

$5 - $10 per group Ages 6 - 11 5 to 10 minutes
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In this physical activity, two lines of learners link hands and arms to model a beam subject to various loading schemes.

free Ages 11 - 14 10 to 30 minutes
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In this activity, learners explore the engineering design process and the basic mechanics behind building bridges as they build one themselves using gumdrops and toothpicks.

$5 - $10 per student Ages 8 - adult 30 to 45 minutes
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In this activity, learners build mini catapults using paint paddles and a spoon. Use this activity to introduce learners to forces and projectile motion.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this quick activity, learners break the tension that happens when water develops a "skin." Learners use water, pepper and some soap to discover the wonders of surface tension—the force that attract

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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Learners build structures from spaghetti and marshmallows to determine which structures are able to handle the greatest load.

$1 - $5 per group Ages 11 - 18 30 to 45 minutes
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This is a quick activity (on page 2 of the PDF under Gecko Feet Activity) about the forces of gravity and surface tension and how their behavior is influenced by size.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches.

free Ages 8 - 14 10 to 30 minutes
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This hands-on activity shows you how to build basic architectural shapes out of toothpicks and gumdrops.

$1 - $5 per student Ages 6 - 11 30 to 45 minutes
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In this activity, learners build bridges out of newspaper and tape to explore how structures are designed to bear loads.

1 cent - $1 per group Ages 4 - 11 2 to 4 hours