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Showing results 161 to 180 of 287

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In this activity, learners create a water prism to break light into the seven colors of the rainbow.

free Ages 6 - 11 Under 5 minutes
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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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In this activity, learners discover how sweating makes us feel cooler. Learners put on one damp sock and one dry sock and sit in front of a fan.

free Ages 4 - 14 5 to 10 minutes
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In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it.

$1 - $5 per group Ages 6 - adult 1 to 7 days
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In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.

$10 - $20 per group Ages 6 - 14 1 to 4 weeks
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In this activity, learners use simple materials to create giant bubbles.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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Learners assemble a figure from a nylon stocking or sock stuffed with soil and seeds. The ends of the nylons inside the jar absorb water, which feeds the grass seeds.

$1 - $5 per student Ages 4 - 11 1 to 4 weeks
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In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).

free Ages 8 - 14 Under 5 minutes
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In this quick activity, learners explore how blubber protects animals from the cold by making a "blubber mitt." Using cooking shortening, two zip-top sandwich bags, and duct tape, learners simulate bl

$1 - $5 per student Ages 4 - 11 5 to 10 minutes
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In this activity, learners create a "mini sky" in a glass of water in a dark room.

1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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In this activity, learners try to revive wilted celery. Learners discover that plants wilt when their cells lose water through evaporation. Use this activity to introduce capillary action.

$1 - $5 per group Ages 4 - 11 4 to 24 hours
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Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the yeast.

$1 - $5 per group Ages 6 - 14 4 to 24 hours
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This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.

1 cent - $1 per group Ages 8 - 18 Under 5 minutes
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In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.

1 cent - $1 per group Ages 4 - 14 Under 5 minutes
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Visitors observe a bottle with a balloon attached around the mouth. The bottle contains a solution of yeast, sugar, and water.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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In this "Sid the Science Kid" activity, learners get their hands dirty by playing in a container of soil. Then they compare the effectiveness of cleaning their hands with just a paper towel vs.

1 cent - $1 per group Ages 4 - 6 10 to 30 minutes
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This is a chemistry lab activity about solutions (page 7 of the PDF). Learners see firsthand how chemicals in a solution can combine to form an entirely different substance.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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After an interest-generating discussion about "dirt" and microbes, learners select and collect soil samples from a variety of locations (schoolyard, home, etc.).

$1 - $5 per group Ages 8 - 18 1 to 7 days
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In this activity on page 6 of the PDF (Get Cooking With Chemistry), learners investigate yeast. Learners prepare an experiment to observe what yeast cells like to eat.

$10 - $20 per student Ages 8 - 14 10 to 30 minutes
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In this activity about sea otters, learners make their own "otter whiskers" and use them to find objects underwater.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes