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Are fingers the only place on the body where we use our sense of touch? In this activity (6th activity on the page), learners test the touch sensitivity of different parts of the body.

free Ages 4 - 18 5 to 10 minutes
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This game presents you with several different choices you can make in the course of your everyday life to increase your level of physical activity and be healthier.

free Ages 8 - 14 5 to 10 minutes
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This is an online game recreating the longest ever (at that point in time) freefall jump by Air Force Captain Joe Kittinger.

free Ages 8 - 14 5 to 10 minutes
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In this activity, learners find the answer to the question, "if you have a pile of 8 cards, and you remove half, then half again, how many times can you do this until you get to just one card?" This w

1 cent - $1 per group Ages 6 - 18 5 to 10 minutes
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This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

1 cent - $1 per group Ages 6 - 18 5 to 10 minutes
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In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In this online activity, learners crack the special code imprinted on envelopes to help the U.S. Postal Service deliver the mail.

free Ages 8 - 14 5 to 10 minutes
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In this activity, learners play a card game that explores different size scales--macro, micro and nano.

1 cent - $1 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this quick and simple activity, learners explore how the distribution of the mass of an object determines the position of its center of gravity, its angular momentum, and your ability to balance it

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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In this demonstration, learners compare and contrast regular water ice to dry ice (frozen carbon dioxide). Both samples are placed in a solution of acid-base indicator.

$1 - $5 per group Ages 8 - 14 5 to 10 minutes
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In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

$1 - $5 per student Ages 6 - 14 5 to 10 minutes
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This is an activity about music, movement, and math. Learners will start a rhythm pattern with 2, 3, or 4 beats. For instance, tap your foot, jump, clap, repeat.

free Ages 4 - 14 5 to 10 minutes
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In this activity (4th activity on the page), learners use their sense of smell to rate and arrange containers filled with different dilutions of a scent (like cologne or fruit juice) in order from wea

$1 - $5 per group Ages 8 - 18 5 to 10 minutes
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This is a quick activity (on page 2 of the PDF under Gecko Feet Activity) about the forces of gravity and surface tension and how their behavior is influenced by size.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

$1 - $5 per group Ages 4 - 18 5 to 10 minutes
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In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

1 cent - $1 per student Ages 6 - 18 5 to 10 minutes