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Showing results 281 to 287 of 287

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In this lab (Activity #1 on page), learners compare bacteria growth on two petri dishes containing nutrient agar: one that has been touched by a finger washed only with water and one that has been tou

$1 - $5 per group Ages 8 - 18 1 to 7 days
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In this quick and simple activity about reflexes (at the top of the webpage), learners conduct a simple test to explore pupillary response.

free Ages 8 - 18 Under 5 minutes
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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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In this activity (7th activity on the page), learners use their sense of touch to identify mystery objects hidden in socks.

free Ages 4 - 18 5 to 10 minutes
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In this activity, learners explore the great pump in their chests--the human heart!

$1 - $5 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners create angle-measuring devices--protractors--out of paper. Learners follow a series of steps to fold a square sheet of paper into a triangular Pocket Protractor.


1 cent - $1 per student Ages 11 - 18 5 to 10 minutes