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In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

$5 - $10 per group Ages 6 - 18 30 to 45 minutes
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In this activity, learners explore and compare the buoyant properties of materials found in nature and in human-made materials.

1 cent - $1 per group Ages 4 - adult
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In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow.

$1 - $5 per group Ages 4 - 6 45 to 60 minutes
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In this activity, learners will trick out their bike with crafts and flair. Learners will explore symmetry, cause and effect and design through this activity.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed from

Over $20 per group Ages 11 - 14 2 to 4 hours
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Learners trace, cut out and fly a boomerang, outdoors or in a large indoor space.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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Explore the effects of gravity on a slowly falling object: a parachute you make out of plastic bags, string and stones.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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Make impact craters with marbles (or rocks or washers) in a container of flour. Find out what you can learn about your "comets" by the craters they make.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water.

$5 - $10 per group Ages 4 - 8 45 to 60 minutes
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Learn about friction and kinetic energy with this cool spinning toy.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

$1 - $5 per student Ages 6 - 18 45 to 60 minutes
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In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Soccer Ball Kick) is a full inquiry investigation into transfer of motion.

$5 - $10 per group Ages 8 - 14 45 to 60 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 work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.

free Ages 11 - 18 45 to 60 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Tug O' War) is a full inquiry investigation into tug-of-war physics. Groups of learners will test two tug-of-war strategies.

$10 - $20 per group Ages 8 - 14 2 to 4 hours