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In this activity, learners explore why humans sweat. Learners compare the effects of heat on a balloon filled with air and a balloon filled water.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Learners will build a homemade pump using a balloon, a mason jar, and some straws.

1 cent - $1 per group Ages 6 - 14 45 to 60 minutes
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In this activity about human anatomy (page 16 of PDF), learners construct a model arm and discover how muscles and bones work together to achieve efficient movement.

$1 - $5 per group Ages 6 - 11 45 to 60 minutes
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In this activity about the heart (on page 22 of the PDF), learners examine sheep or chicken hearts to learn about the heart's structure and the flow of blood through the heart.

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners use household materials to investigate and explore their ability to smell an odor.

Over $20 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners create virus models, including nucleic acid and proteins, using simple materials. This resource includes information about virus structure and gene therapy.

1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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To discover the risk and protective factors involved in substance addiction, learners play a game of chance to determine whether a fictitious child is likely or unlikely to abuse drugs.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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In this demonstration (9th on the page), learners explore eyewitness memory and how memories differ amongst individuals. While the rest of the group is minding their own business (i.e.

free Ages 8 - 18 10 to 30 minutes
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In this activity, learners compare the ancient Egyptian system of measurement, which was based on body lengths, to the customary and metric systems used today.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.

$5 - $10 per group Ages 6 - 18 5 to 10 minutes
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This activity aims to stimulate discussion on the question of whether computers can exhibit “intelligence,” or are ever likely to do so in the future.

free Ages 11 - 18 10 to 30 minutes
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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most to learn about the different sizes of dinosaurs.

1 cent - $1 per group Ages 6 - 8 45 to 60 minutes
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In this activity, learners explore healthy choices related to the foods they eat. The importance of a variety of fruits and vegetables to a healthy diet is the focus of the experience.

$1 - $5 per group Ages 4 - 8 45 to 60 minutes
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In this activity, learners act out the flow of blood in the human body! A great way to get learners up and moving while learning about the circulatory system.

1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity (1st on the page), learners keep a "SLOG" or Sleep Log to study their sleep patterns.

1 cent - $1 per student Ages 8 - 18 1 to 7 days
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In this activity, learners cut, fold, and paste paper representing biomolecules to create a three-dimensional cell membrane with embedded proteins.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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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