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In this activity, learners actually feel the difference in energy required to light two different types of light bulbs: incandescent light and LEDs.

$5 - $10 per group Ages 8 - 14 5 to 10 minutes
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In this activity, learners explore how engineers have developed sorting systems which integrate into manufacturing and packaging processes. Learners explore how coins are made.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore sound by constructing their very own banjo out of a coffee can. Learners experiment with the canjo to change the instrument's pitch and timbre.

$1 - $5 per student Ages 6 - 18 45 to 60 minutes
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This is a series of quick activities/demos and pre-assessment tools that evaluate learners' current understanding of microbes and introduce them to basic information about microbes.

Over $20 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners build mini catapults using paint paddles and a spoon. Use this activity to introduce learners to forces and projectile motion.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this activity about the relationship between food and energy (page 5 of PDF), learners conduct an experiment to compare how much energy is released as heat from two different foods.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how product design differences can affect the success of a final product -- in this case a bag for holding candy.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

1 cent - $1 per group Ages 4 - 18 1 to 2 hours
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In this activity, learners explore how civil engineers solved the challenge of moving water via irrigation.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from.

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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In this lab (Activity #1 on page), learners explore how we see color.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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In this activity (on pages 49-54 of PDF), learners play with tangrams, a set of triangles, squares and a parallelogram that can combine into a larger square as well as all sorts of other shapes.

1 cent - $1 per student Ages 4 - adult 45 to 60 minutes
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In this activity, learners simulate a wolf and its habitat and observe what happens when the limiting factors change over time.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners conduct scientific research on multitasking. Learners determine if multitasking with media while doing homework affects their ability to successfully complete the homework.

free Ages 8 - 14 45 to 60 minutes
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By building a simple watershed with paper and markers and then using a spray bottle to simulate precipitation, learners will understand how pollution accumulates in our water sources, especially from

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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Cool off in the heat with this project! Learners use simple materials to build a fan that runs on a motor.

$5 - $10 per student Ages 8 - 18 10 to 30 minutes
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In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

1 cent - $1 per student Ages 8 - adult 30 to 45 minutes
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In this hands-on activity, learners investigate the functional design of leaves on a tree.

$1 - $5 per group Ages 8 - 14 1 to 2 hours