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In this activity, learners will investigate the part of soil. Explore how clay, silt, and sand make up the dirt in your background. Activity includes step-by-step instructions and extension ideas.

free Ages 4 - adult 10 to 30 minutes
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In this activity, learners explore density and buoyancy as they design and construct rafts.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this astronomy activity, learners create a model of the solar system using beads and string.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners make water-walking critters using thin wire, and then test how many paper clips these critters can carry without sinking.

$5 - $10 per group Ages 11 - 14 10 to 30 minutes
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In this physics activity (page 5 of the PDF), learners will witness the effects of free fall by observing falling water, and will gain a better understanding of the concept of weightlessness.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this activity, learners observe color mixing and absorbency using colored tissue paper and spray bottles.

$1 - $5 per group Ages 4 - 8 10 to 30 minutes
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In this activity, learners experiment with how dish soap and fat interact by making a colorful swirl.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.

$1 - $5 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners explore mammal locomotion by constructing flipbooks.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this hands-on activity, learners simulate the crashing and smashing of a meteor impact using household cooking supplies.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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In this online activity, learners will explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement.

free Ages 6 - adult 10 to 30 minutes
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Jugando a este juego de estrategia, los chicos desarrollan su entendimiento de área y perímetro. En su turno, cada jugador hace una línea entre dos punto contiguos en la cuadrícula.

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.

$5 - $10 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners will build a honeycomb. Learners will investigate how the shape of the honeycomb develops. Activity includes step-by-step instructions and extension ideas.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this quick activity about size and scale (on page 2 of the PDF under What's Nano?

free Ages 8 - 14 10 to 30 minutes
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In this physics activity (page 3 of the PDF), learners will explore the concept of static electricity.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners discover how exercise helps keep the body healthy. Learners increase their heart rates by running and understand how running fast versus walking affects their pulse rates.

free Ages 6 - 14 10 to 30 minutes
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In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.

$5 - $10 per group Ages 4 - 8 10 to 30 minutes
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In this activity (p.3-4 of PDF), learners learn about disease transmission and antibiotic resistance.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes