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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

free Ages 4 - 11 10 to 30 minutes
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In this activity about the brain and sleep (on page 138 of the PDF), learners measure their resting breathing rates. Learners will discover that breathing frequencies vary amongst individuals.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners explore how to protect their skin while applying pesticides to plants.

$10 - $20 per group Ages 8 - 14 10 to 30 minutes
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Learners add drops of four liquids (water, alcohol, salt water, and detergent solution) to different surfaces and observe the liquids' behavior.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners discover that some things only stand up while they are spinning.

$1 - $5 per student Ages 8 - 14 1 to 2 hours
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This activity (on pages 35-43) lets learners analyze a "herd of elk" to detect the spread of a bacterial disease called brucellosis.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners explore the different salinities of various sources of water by taste-testing.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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Learners follow a three-step process to start their own rock collection.

$1 - $5 per student Ages 8 - 14 1 to 7 days
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In this online activity, learners adjust mountain snowfall and temperature to see how glaciers grow and shrink. They will use scientific tools to measure thickness, velocity and glacial budget.

free Ages 8 - adult 10 to 30 minutes
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In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm.

free Ages 6 - 14 5 to 10 minutes
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In this activity (1st on the page), learners conduct a series of tests to find out which of their hands is more dominant. In other words, are they right-handed or left-handed?

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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This great "re-use it" activity will demonstrate how to transform a greeting card into a box. Once constructed, the box can have many uses like holding special notes or keepsakes.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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In this activity, learners create a garden in a disposable glove. They learn about the conditions necessary to make the seeds sprout and actively participate in caring for their plants.

$10 - $20 per group Ages 6 - 11 1 to 4 weeks
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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners explore how objects can have positive, negative, or neutral charges, which attract, repel and move between objects.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, a lightbulb is placed in front of a concave mirror. The actual lightbulb is not visible to the viewer, but the viewer can see the mirror image of the lightbulb formed in space.

Over $20 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners participate in a scavenger hunt, searching for and recognizing minerals and products that contain minerals.

free Ages 8 - 14 10 to 30 minutes