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In this experiment, learners float colored ice cubes in hot and cold water.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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Learners model the ocean currents that carry hot water from the tropics to northern latitudes.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this inquiry-based activity, learners investigate the basic forces of flight as they construct their own paper glider that represents a rainforest creature from Borneo (large, tropical island in So

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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This demonstration/activity helps learners understand why higher elevations are not always warm simply because "hot air rises." Learners use a tire pump to increase the pressure and temperature inside

$1 - $5 per group Ages 8 - 18 10 to 30 minutes
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This activity requires a Pico Cricket (tiny computer).

Over $20 per group Ages 8 - 18 4 to 24 hours
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In this activity learners explore surface tension. Why are certain objects able to float on the surface of water and how do detergents break the surface tension of water?

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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Learners pour equal amounts of coffee, mineral oil, corn syrup, and alcohol into a beaker. The liquids resolve into stacked layers, and learners can infer which liquids are the most and least dense.

$1 - $5 per group Ages 11 - 18 10 to 30 minutes
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In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting.

$5 - $10 per group Ages 8 - 14 2 to 4 hours
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In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

$1 - $5 per group Ages 4 - 11 1 to 2 hours
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In this activity, learners explore the devices used over time to measure changes in temperature.

$1 - $5 per group Ages 8 - 18 1 to 2 hours
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In this physics activity, challenge learners to lift a book with just air using a plastic bag and a straw. This activity demonstrates compressed air and forces.

1 cent - $1 per student Ages 6 - 11 Under 5 minutes
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In this physics activity (page 3 of the PDF), learners will see firsthand that air takes up space and has pressure by attempting to inflate a balloon inside of a bottle.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this activity, learners investigate the basic crystal structures that metal atoms form.

$5 - $10 per student Ages 14 - adult 45 to 60 minutes
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In this quick and easy activity and/or demonstration, learners use two empty soda cans to illustrate Bernoulli's principle.

free Ages 6 - 18 5 to 10 minutes
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In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners explore how composites work by creating and testing their own composite for an imaginary company.

$1 - $5 per student Ages 11 - 18 4 to 24 hours