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Yes, you can weigh your car by figuring out your wheel's tire pressure combined with the "tire's footprint." You'll need someone with a car, driver's license, and safety in mind.

free Ages 11 - adult 10 to 30 minutes
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In this calculus activity, learners use a classic problem of geometrical probability to find an important mathematical constant (pi).

$1 - $5 per group Ages 14 - 18 10 to 30 minutes
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In this activity, learners investigate just how small a billionth of a meter is by attempting to cut a paper ruler down to a nanometer-sized sliver.

1 cent - $1 per student Ages 4 - adult 5 to 10 minutes
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In this activity, learners explore a surprising method for calculating the mathematical constant pi, known as Buffon's Needle.

$1 - $5 per student Ages 11 - 18 5 to 10 minutes
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Using zebra mussels (Dreissena polymorpha), elodea and an indicator dye, learners study the role of light in photosynthesis.

$10 - $20 per group Ages 14 - 18 1 to 7 days
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In this activity, learners help a poor cartographer color in the countries on a map, making sure each country is colored a different color than any of its neighbors.

1 cent - $1 per group Ages 6 - 18 30 to 45 minutes
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In this activity, learners use ABS pipe and an air leaf blower to make a strong shooting machine.

Over $20 per group Ages 11 - adult 1 to 2 hours
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In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.

1 cent - $1 per group Ages 11 - 18 5 to 10 minutes
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This is a comprehensive lesson plan on page 85 for a group cleanup trip to a local beach, lake or stream. Learners keep track of the types and amounts of trash picked up and analyze this information.

$5 - $10 per group Ages 14 - 18 1 to 7 days
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In this math-based activity, learners model the intensity of light at various distances from a light source, and understand how astronomers measure the amount of sunlight that hits our planet and othe

$1 - $5 per group Ages 11 - adult 45 to 60 minutes
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Learners can program a compass to draw a circle by itself using a Pico Cricket, some Legos, and lots of tape! Pico Cricket is required.

Over $20 per group Ages 8 - adult 45 to 60 minutes
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper

1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners find out why some mineral sunblock rubs in clear. Learners compare nano and non-nano sunblocks and discover how particle size affects visibility.

$5 - $10 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity related to climate change, learners create and explore topographical maps as a means of studying sea level rise.

$1 - $5 per group Ages 14 - 18 45 to 60 minutes
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Learners build simple catapults and use them to launch cotton balls.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, which requires adult supervision, learners get to explore the awesome power of chemistry.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners discover that a material can act differently when it's nanometer-sized.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In order to examine the random nature of mutations and natural selection, learners "breed" clutches of Egyptian Origami Birds (Avis papyrus) using random number generators (dice and coins) to mutate s

$5 - $10 per group Ages 14 - 18 2 to 4 hours