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In this activity, learners experiment with inertia by performing an easy and hands-on investigation with a playing card and a stack of coins. The activity includes an accompanying Mr.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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In this activity, learners imagine what the world might look like if we could build an elevator to space!

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this activity related to flight, learners conduct two simple tests to explore how lift works.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this activity (p.25 of PDF), learners investigate spores. Mushrooms produce millions of spores which are equivalent to the seeds of plants but without the massive food reserves.

1 cent - $1 per student Ages 11 - 14 2 to 4 hours
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In this activity about electricity, learners suspend pieces of tape from a straw to construct an electroscope, a device that detects an electrical charge.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this amazingly simple physics activity (page 5 of the PDF), learners will explore how exerting a force on an object can give it kinetic energy and momentum.

1 cent - $1 per student Ages 11 - 14 10 to 30 minutes
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In this hands-on art and science activity (page 4 of the pdf), learners brainstorm and discuss how humans use wetlands, then express their understanding of the subject in artwork.

1 cent - $1 per student Ages 8 - 11 1 to 2 hours
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In this activity about sleep rhythms (on page 21 of the PDF), learners will collect data about their own sleep cycles and use a fraction wheel to examine their data.

1 cent - $1 per student Ages 8 - 14 1 to 7 days
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Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper.

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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Learners cover a bottle with a balloon. When they immerse the bottle in warm water, the balloon inflates. When they immerse the bottle in a bowl of ice, the balloon deflates.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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This game teaches ratio and proportion by having learners make "salads" that combine three types of beans in different combinations.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners investigate the properties of plastic bags. Learners find out what happens when they slowly push a pencil through a plastic bag filled with water.

1 cent - $1 per group Ages 4 - 11 10 to 30 minutes
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In this activity, learners discover a trick to release the air out of a balloon without popping it.

1 cent - $1 per student Ages 8 - 18 Under 5 minutes
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In this math lesson (page 2 of the PDF), learners use bottles of various shapes to explore the abstract concept of rate of change.

1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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In this math activity (Page 10 of the Play Ball! PDF), learners play a game of "football" and analyze the results of the game.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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In this biology activity, learners recreate the process of digestion in a zip lock bag. A bit of soda pop added to some crumbled crackers approximates how acids in the stomach dissolve food.

1 cent - $1 per student Ages 8 - 11 5 to 10 minutes
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In this activity, learners explore why frost forms. They create their own frost using a solution of ice water and salt in a glass.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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Conduct a simple experiment to explore how temperature changes can make things expand or contract.

1 cent - $1 per group Ages 6 - 14 Under 5 minutes
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In this demonstration, learners attempt to get a large coin through a small hole, the size of a smaller coin.

1 cent - $1 per student Ages 8 - adult 5 to 10 minutes
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Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

1 cent - $1 per student Ages 11 - 14 45 to 60 minutes