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Big and Little Cups
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In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

COSI's Bubble Recipe
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Everybody loves bubbles, and this is the best bubble recipe ever!

As the Rotor Turns: Wind Power and You
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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

Gravity in Action
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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.

Trash Traits
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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.

A Degrading Experience
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In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

Speedy Shelter
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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.

Bury Me Not!
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This activity (page 2 of the PDF under SciGirls Activity: Bogs) is a full inquiry investigation into decomposition.

Tug-of-War
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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.