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Showing results 401 to 420 of 1508

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In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners conduct tests for proteins, glucose, and starch.

Over $20 per group Ages 11 - 18 1 to 2 hours
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In this activity, learners explore the forces at work in water. Learners experiment to find out what happens to pepper in water when they touch it with bar soap and liquid detergent.

$1 - $5 per student Ages 8 - 18 5 to 10 minutes
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Learners work with plastic sheeting, masking tape, and string to design the perfect material for plastic chair webbing, and then construct their webbing.

$10 - $20 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners interpret three trackways and use measurements and a formula to infer the relative speed of dinosaurs.

free Ages 11 - 14 45 to 60 minutes
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In this activity (located on page 7 of PDF), learners explore how Silly Putty was first invented and then attempt to make a batch of their own.

$10 - $20 per group Ages 4 - 11 45 to 60 minutes
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In this experiment, learners work in pairs to create two gloves -- one that contains a layer of shortening (blubber) inside, and one that doesn't.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners create a gelatinous slime using guar gum powder and borax. Educators can use this simple activity to introduce learners to colloids.

$10 - $20 per group Ages 6 - 18 30 to 45 minutes
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In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

$1 - $5 per group Ages 11 - 18 Under 5 minutes
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In this experiment using sprigs of Elodea, learners will observe a natural process that removes carbon dioxide (CO2) from Earth's atmosphere.

$10 - $20 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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In this activity, learners investigate the Moon's infancy and model how an ocean of molten rock (magma) helped shape the Moon that we see today.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper

1 cent - $1 per group Ages 14 - 18 45 to 60 minutes
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This activity (located on page 3 of the PDF under GPS: Light and Color Activity) is a full inquiry investigation into mixing colors with light.

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners find out why some mineral sunblock rubs in clear. Learners compare nano and non-nano sunblocks and discover how particle size affects visibility.

$5 - $10 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity (page 1 of the PDF under SciGirls Activity: Water Slides), learners will whip up some suds with a cup of water and a tablespoon of dish soap until the bubbles are stiff enough to star

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes