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This lab activity is about toxic substances like pesticides and their effects on biological systems. The activity starts with an introduction of how birds sequester calcium to make an egg.

$10 - $20 per group Ages 14 - 18 1 to 7 days
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In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes.

free Ages 11 - adult 1 to 2 hours
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In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.

free Ages 8 - 14 10 to 30 minutes
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In this activity (on page 1 of the PDF under SciGirls Activity: Soccer Ball Kick), learners will investigate the transfer of energy using sports equipment.

free Ages 8 - 14 30 to 45 minutes
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In this activity, learners "dance" (move back and forth at varying speeds) by reading a graph. This is a kinesthetic way to help learners interpret and understand how motion is graphed.

1 cent - $1 per group Ages 11 - 18 10 to 30 minutes
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Learners cut and fold a paper helicopter from the template in this PDF. They practice twirling the helicopter and observe what happens as they modify their tries.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners make a paper model of a polymer, then make Silly Putty, an actual polymer.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners make pykrete by freezing a mixture of water and a material like cotton wool, grass, hair, shredded paper, wood chips, or sawdust.

1 cent - $1 per student Ages 4 - adult 4 to 24 hours
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Play keep away from your cat by using a static charge to suspend a piece of tinsel in the air. This Exploratorium produced activity also features videos to help create and learn about this phenomenon.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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Perform this classic inertia demonstration to illustrate the transfer of potential energy to kinetic energy.

$1 - $5 per group Ages 6 - 18 Under 5 minutes
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Find out what it would be like to have ears shaped differently from your own! Design and make different animal ears then try them out.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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In this oceanography and data collection activity, learners cast real time sea state conditions using buoys from NOAA's National Data Buoy Center.

1 cent - $1 per student Ages 14 - 18 1 to 2 hours
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In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

1 cent - $1 per student Ages 11 - 18 1 to 7 days
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Learners observe two joined glass tubes containing a conductive salt solution. Electrodes are passing an electric current through the water.

$10 - $20 per group Ages 11 - adult Under 5 minutes
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In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Learners make a circuit board that has questions and answers. When the correct answer is chosen for a question, a circuit is completed and a light illuminates.

$5 - $10 per student Ages 8 - 14 30 to 45 minutes
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In this activity about scale, learners investigate the world of the very small by cutting a 28 centimeter strip of paper in half as many times as they can.

1 cent - $1 per student Ages 11 - 18 Under 5 minutes
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In this invention challenge activity, learners see how many objects they can grab with a homemade "bionic" arm.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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This event guide features three related explorations in which learners investigate the following science concepts: how you design and build a structure helps determine how strong it will be; different

$5 - $10 per group Ages 4 - 6 45 to 60 minutes
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This demonstration can be used to help learners visualize DNA by lysing (breaking open) bacterial cells on a slide and “stringing up” the DNA with a toothpick in less than one minute.

$10 - $20 per group Ages 11 - 18 5 to 10 minutes