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Showing results 1021 to 1040 of 1740

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In this activity, learners mark their height on a height chart and discover how tall they are in nanometers.

1 cent - $1 per group Ages 4 - adult 5 to 10 minutes
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Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

$5 - $10 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners discover the three R's of environmental protection: reduce, reuse, and recycle.

free Ages 8 - 18 1 to 7 days
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This laboratory exercise is designed to show learners how DNA can easily be extracted from wheat germ using simple materials.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.

1 cent - $1 per group Ages 6 - 14 2 to 4 hours
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An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

$10 - $20 per group Ages 8 - 18 1 to 4 weeks
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In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution.

per group Ages 14 - adult 1 to 2 hours
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In this activity, learners count and measure kidney beans to explore natural selection and variation. Learners measure the length of 50-100 beans.

$5 - $10 per group Ages 14 - 18 1 to 2 hours
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In this activity (on pages 10-17), learners discover how scientists study biodiversity and the health of the environment based on inspection of small areas—a process known as sampling.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light.

free Ages 6 - adult 5 to 10 minutes
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This activity was designed for blind learners, but all types of learners can model how vibrating particles, such as in a sound wave, bump into other particles causing them to vibrate, and that the vib

$1 - $5 per group Ages 11 - 18 10 to 30 minutes
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In this activity related to microbes, learners make slides of cells from an onion skin and Elodea (American or Canadian waterweed) to observe under a microscope.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this set of outdoor games, learners increase their awareness of the outdoor environment by going on a scavenger hunt and an out-of-place hunt.

$5 - $10 per group Ages 4 - 11 1 to 2 hours
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In this activity, learners extract DNA from a strawberry and discover that DNA is in the food they eat.

$1 - $5 per student Ages 11 - 14 45 to 60 minutes
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In this creative activity, learners will practice looking carefully to observe details and to become familiar with dioramas as a method for displaying naturalistic scenes.

free Ages 4 - 14 30 to 45 minutes
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In this data activity, learners will explore shipwrecks from four National Marine Sanctuaries on the West Coast of the United States.

free Ages 14 - adult 1 to 2 hours
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In this activity, (on page 6 of the PDF under SciGirls Activity: Dinosaurs) learners participate in a hands-on fossil excavation.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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This lesson introduces learners to the world of nematodes (roundworms).

$1 - $5 per group Ages 14 - 18 1 to 7 days
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In this activity, learners extract DNA from their own cheek cells, then create a rudimentary DNA profile similar to those seen on crime scene dramas.

Over $20 per group Ages 11 - adult 1 to 7 days
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In this activity, learners discover how hard their hearts work to pump blood.

free Ages 4 - 14 Under 5 minutes