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Learners set up three different bowls, each with a different mass of oatmeal. Learners monitor the temperature of the oatmeal and find that larger masses take longer to cool.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners build a racecar using only a rubber band, spool, straw, and paper clip! This racer is a classic toy that zips across a flat surface.

1 cent - $1 per student Ages 6 - 11 30 to 45 minutes
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In this interdisciplinary activity, learners create a Space Weather Action Center (SWAC) to monitor solar storms and develop real SWAC news reports.

Over $20 per group Ages 8 - 14 4 to 24 hours
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In this activity, learners are challenged to design and construct a windmill to harness the power of wind.

Over $20 per group Ages 8 - 18 30 to 45 minutes
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In this online Flash game, learners will captain a sailing challenge, adjusting boat direction and sails, seeking the way to take greatest advantage of varying wind speeds and directions to catch the

free Ages 6 - 14 5 to 10 minutes
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Experiment with friction and make bearings for a whirligig! This activity is a nice introduction to friction and bearings and demonstrates why bearings are useful for spinning.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan.

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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Learners press their fingertip onto a clean Plexiglas sheet. The fingerprints are then revealed as learners dust over the print with fingerprint powder.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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Learners design and build a roller coaster using simple materials. Learners experiment with potential and kinetic energy to get a marble to follow a track into a cup.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this engineering activity, learners design and build a mechanical arm to lift a small item.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Soccer Ball Kick) is a full inquiry investigation into transfer of motion.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore work, forces, simple machines, and construction. This lesson guide includes simple ways to demonstrate these principles as well as hands-on activities.

$1 - $5 per group Ages 4 - 8 1 to 2 hours
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In this activity on page 10 of the PDF, learners detect the amount of energy that can flow through a sodium chloride electrolyte solution with a light sensor.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore the relative efficiency of different bulbs, specifically incandescent vs. fluorescent.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners build a tiny but powerful flashlight out of simple materials. Use this activity to introduce learners to electrical circuits and conductivity.

$5 - $10 per student Ages 8 - 11 10 to 30 minutes
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In this activity, learners explore the engineering behind seismographs and how technology has improved accurate recording of earthquakes.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how the process of folding has impacts on engineering and is evident in nature.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this engineering activity, learners build a device (an anemometer) to measure how fast the wind is blowing.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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This is an activity about waves. Using marbles, paper clips and rubber bands, learners explore how waves behave.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners explore the invisible infrared radiation from an electric heater.

Over $20 per group Ages 8 - 14 10 to 30 minutes