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In this activity, learners are asked to examine the differences between two materials in a pair.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners discover that some plastics will shrink when you get them hot. Learners bake polystyrene in a regular oven and discover what happens.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

$1 - $5 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

$10 - $20 per group Ages 8 - 18 1 to 7 days
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In this activity, learners explore the concept of valve operation and how engineers have adapted valves for use in mechanical heart valve design.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this activity, learners explore surgical instrument design. Teams of learners construct surgical instruments from everyday materials.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.

$1 - $5 per group Ages 4 - 18 1 to 2 hours
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In this robotics activity, learners drive a remote-controlled car through a course to learn the challenges faced while trying to operate a planetary rover.

1 cent - $1 per group Ages 8 - 18 1 to 2 hours
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Build a musical ice theremin by programming a micro controller, like a Pico Cricket to respond to resistance generated by the ice melting, or the ice being touched.

Over $20 per group Ages 8 - adult 2 to 4 hours
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In this activity, learners explore how environmental engineers might approach solving the problem of an oil spill.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how engineering has developed various means to remove impurities from water.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.

free Ages 11 - adult 10 to 30 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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In this activity, learners are challenged to design and construct a trophy for prize-winning sports equipment.

$5 - $10 per group Ages 8 - 18 10 to 30 minutes
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The goal of this Star Wars activity is to design and build a balancing device to help an Ewok escape the Imperial Forces by sliding down a tightrope to safety.

$10 - $20 Ages 8 - 18 30 to 45 minutes
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With a bit of PVC, a laser, a can/cup, and a small mirror, you can make a device that visualizes you voice or any sound transmitted into the cup/can.

free Ages 8 - adult 10 to 30 minutes
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The Let's Do Chemistry "Build a Battery" activity lets participants learn how batteries work and how materials behave, change, and interact by building their own simple battery out of metal and felt w

$10 - $20 per group Ages 6 - adult 5 to 10 minutes
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In this activity, learners explore the structural strength of triangles by creating their own free-standing geodesic dome out of plastic straws.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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In this activity (pages 13-14), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.

$5 - $10 per student Ages 8 - adult 10 to 30 minutes
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In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.

Over $20 per group Ages 8 - 18 45 to 60 minutes