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Showing results 1341 to 1360 of 2051

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In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.

free Ages 4 - 18 Under 5 minutes
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In this activity, learners are challenged to track and record the passage of colored pom poms (representing genes) through generations of a family using a pedigree.

$5 - $10 per group Ages 11 - 18 30 to 45 minutes
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In this activity (4th on the page), learners conduct a series of tests to find out which of their ears is more dominant.

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners will explore trends in Canada goose populations using real data from the National Audubon Society's Christmas Bird Count.

free Ages 14 - 18 1 to 2 hours
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This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen.

free Ages 8 - 18 Under 5 minutes
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This experiment allows learners to experience a small scale "epidemic," demonstrating the ease with which disease organisms are spread, and enables learners to determine the originator of the "epidemi

Over $20 per group Ages 14 - adult 4 to 24 hours
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In this activity, learners play a guessing game to explore classification.

free Ages 6 - 11 5 to 10 minutes
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In this physics activity, challenge learners to make a rubber band-powered spool racer. Demonstrate principles of motion as well as potential and kinetic energy.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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This is an activity (located on page 3 of the PDF under Self-Assembly Activity) about self-assembly, the ability of molecules to assemble themselves according to certain rules.

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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In this outdoor activity, learners use a mapping technique to become oriented to the major features of an outdoor site.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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Learners experiment to see which colors of light will cause a phosphorescent (glow-in-the-dark) material to glow.

$10 - $20 per group Ages 11 - 14 10 to 30 minutes
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This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

1 cent - $1 per group Ages 6 - 18 5 to 10 minutes
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In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore the process of condensation.

1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners use a compact disc to make a spectrometer, an instrument used to measure properties of light.

$1 - $5 per student Ages 11 - 18 30 to 45 minutes
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In this activity, learners create models of ionic compounds and observe the chemical formula of binary molecules they have created.

free Ages 14 - adult 1 to 2 hours
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In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.

$5 - $10 per student Ages 6 - 18 10 to 30 minutes
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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Learners add different liquids (water, salt water, alcohol, and detergent solution) to water and observe the different ways the different liquids combine with water.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes