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Showing results 621 to 640 of 814

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In this genetics activity, learners discover how to extract DNA from green split peas.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

free Ages 6 - 11 5 to 10 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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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners will use cereal to conduct an experiment and investigate how decreased bone density is related to increased risk of bone fracture.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

$1 - $5 per group Ages 4 - 11 1 to 7 days
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This perception trick focuses on conflicting information to the brain...instead of trying to see two images, you're trying to get a bright spot by overlapping the image you see through two tubes.

1 cent - $1 per student Ages 4 - 11 Under 5 minutes
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes
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This is a quick game about self-assembly (page 2 of PDF under Self-Assembly Activity). Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules.

free Ages 8 - 14 10 to 30 minutes
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In this optics activity, learners investigate afterimages.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this optics activity, learners conduct an experiment to explore peripheral vision. Learners collect data about their ability to see shapes, colors, or letters using their peripheral vision.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this activity about molecular diffusion (located on page 2 of the PDF under Nanosilver Activity), learners will make predictions and move molecules of iodine through a seemingly solid plastic sandw

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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This is an activity (located on page 3 of PDF under Gecko Feet Activity) about modeling a nanoscale phenomenon (gravity-defying gecko feet) with macroscale objects (shoes).

$1 - $5 per group Ages 8 - 14 2 to 4 hours
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In this activity, learners will explore two-dimensional shapes that are found in three-dimensional shapes. Learners will explore geometry, design, color and tool use through this activity.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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If you had a long tube with a 5 millimeter wide slit, would you see the entire Golden Gate Bridge?

1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

$1 - $5 per group Ages 4 - adult Under 5 minutes
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Which one of your eyes are dominant? Do they act independently or are they equally "in control?" This activity explores how your eyes work (or don't work) together.

1 cent - $1 per student Ages 6 - 14 Under 5 minutes