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In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this math lesson, learners explore the relationship between the thickness of a spaghetti bridge, the length of the bridge, and the amount of weight that can be supported by the bridge.

$5 - $10 per group Ages 14 - 18 45 to 60 minutes
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In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows.

$1 - $5 per group Ages 6 - 18 5 to 10 minutes
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In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

$10 - $20 per group Ages 11 - 18 10 to 30 minutes
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Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.

free Ages 11 - 18 30 to 45 minutes
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In this activity, learners design a bicycle helmet. Participants will explore the design of bicycle helmets to gain an appreciation for the role that helmet layers play protecting the head.

Over $20 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners play with surprising sand that doesn’t get wet! Learners explore how water behaves differently when it comes in contact with "magic sand" and regular sand.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this lesson, learners are challenged to discover the relationship among six numbers.

free Ages 11 - 18 30 to 45 minutes
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This activity helps learners visualize the Human Immunodeficiency Virus (HIV) by constructing three-dimensional HIV particle models from paper.

1 cent - $1 per student Ages 8 - 18 1 to 2 hours
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This is written as a static display, but can easily become a hands-on experiment for learners.

$5 - $10 per group Ages 14 - adult 30 to 45 minutes
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In this activity, learners explore how watermills have helped harness energy from water through the ages.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners will use a variety of household and/or natural objects to design a sculpture that balances from a single point.

free Ages 6 - adult 30 to 45 minutes
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In this activity, learners discover how gelatin can be used as a medium for drug delivery. Learners create colored gelatin and then cut out pieces of the gelatin to simulate medicine (pills).

$1 - $5 per group Ages 8 - 18 4 to 24 hours
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This lesson focuses on how nanotechnology has impacted the design and engineering of many everyday items from paint to fabrics.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners of all ages will roll a ball coated with paint to artistically visualize the motion of the object.

$1 - $5 per group Ages 4 - adult 30 to 45 minutes
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In this activity, learners of all ages will design a functional bird feeder using familiar, every day materials.

$5 - $10 per group Ages 4 - adult 30 to 45 minutes
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In this activity, learners will plot the distribution of various oozes using information from sediment maps.

free Ages 14 - 18 45 to 60 minutes
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In this chemistry activity, learners explore whether matter is created or destroyed during a chemical reaction. They will compare the weight of various solutions before and after they are mixed.

$5 - $10 per group Ages 11 - 18 30 to 45 minutes
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In this geology and engineering activity (page 7 of the PDF), learners build an earthquake simulator, then use it to test various building designs, exploring different materials, shapes, and design op

Over $20 per group Ages 14 - 18 1 to 2 hours
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This is an activity that demonstrates how batteries work using simple household materials. Learners use a pickle, aluminum foil and a pencil to create an electrical circuit that powers a buzzer.

$5 - $10 per group Ages 11 - 18 30 to 45 minutes