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Showing results 1161 to 1180 of 1617

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In this activity, learners experiment with how dish soap and fat interact by making a colorful swirl.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.

free Ages 8 - 18 45 to 60 minutes
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In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.

$1 - $5 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners explore mammal locomotion by constructing flipbooks.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this hands-on activity, learners simulate the crashing and smashing of a meteor impact using household cooking supplies.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.

$5 - $10 per student Ages 8 - 18 1 to 2 hours
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In this archaeology meets art activity, learners make a mosaic and consider the ways in which art communicates.

$10 - $20 per group Ages 8 - 18 1 to 7 days
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This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

$1 - $5 per student Ages 6 - 11 1 to 2 hours
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In this online activity, learners will explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement.

free Ages 6 - adult 10 to 30 minutes
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.

$5 - $10 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners will build a honeycomb. Learners will investigate how the shape of the honeycomb develops. Activity includes step-by-step instructions and extension ideas.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this online activity, learners test their ability to hear different frequencies and compare their frequency range with the frequency range of other animals and insects.

free Ages 4 - 11 5 to 10 minutes
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In this demonstration, learners will be "wowed" as three matches burn to form a triangular pyramid shape and "magically" rise off the table.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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Can you avoid the body's immune system and make someone sick? Play this online game in which you go inside a human body to explore how viruses attack cells in the body.

free Ages 8 - 14 5 to 10 minutes
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In this quick activity about size and scale (on page 2 of the PDF under What's Nano?

free Ages 8 - 14 10 to 30 minutes
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In this activity (on page 2) about fingerprint analysis, learners use graphite from a pencil and scotch tape to capture their fingerprints.

$1 - $5 per group Ages 4 - 14 5 to 10 minutes
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In this chemistry activity, learners make a slimy non-Newtonian fluid called "Gluep." Use this activity to introduce learners to polymers and viscosity.

$1 - $5 per group Ages 4 - 18 5 to 10 minutes
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In this physics activity (page 3 of the PDF), learners will explore the concept of static electricity.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners discover how exercise helps keep the body healthy. Learners increase their heart rates by running and understand how running fast versus walking affects their pulse rates.

free Ages 6 - 14 10 to 30 minutes