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Showing results 361 to 376 of 376

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In this environmental science and data analysis activity, learners work in groups to track a Dead Zone (decreased dissolved oxygen content of a body of water) using water quality data from the Nutrien

free Ages 14 - 18 1 to 2 hours
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In a series of three experiments, learners explore the basics of biotechnology using self-locking plastic baggies. Each experiment demonstrates a phenomenon or principle of biotechnology.

Over $20 per group Ages 14 - 18 4 to 24 hours
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In this activity, learners work in groups to match craft sticks that represent chromosomes. Learners must define critical attributes of their chromosomes as they look for matching chromosomes.

$1 - $5 per group Ages 11 - 18 1 to 2 hours
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Learners add drops of alginate solution to a solution of calcium chloride. The alginate does not mix with the calcium chloride, but forms soft gel beads.

per group Ages 8 - adult 5 to 10 minutes
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Learners press their fingertip onto a clean Plexiglas sheet. The fingerprints are then revealed as learners dust over the print with fingerprint powder.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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This activity features two connected hands-on activities about dinosaur bones.

$1 - $5 Ages 8 - 18 1 to 7 days
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In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

free Ages 14 - 18 10 to 30 minutes
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In this activity, learners make a small batch of biodiesel that will work in any diesel engine. Learners use an old juice bottle as a "reactor" vessel to chemically process vegetable oil into fuel.

$10 - $20 per group Ages 14 - adult 1 to 7 days
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"Sublimation Bubbles" allows learners to explore how some solid materials, such as dry ice, can phase change directly from their solid to gaseous form.

Over $20 per group Ages 6 - adult 5 to 10 minutes
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"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?

Over $20 per group Ages 6 - adult 5 to 10 minutes
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In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.

$5 - $10 per group Ages 14 - adult 1 to 2 hours
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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 chemistry activity (page 5 of the PDF), learners make an acid-base indicator using cabbage. Learners then explore how various subtances react with this indicator.

Over $20 per group Ages 8 - 18 30 to 45 minutes
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Learners observe different paper samples under ordinary room light and under a black light to learn some of the chemical differences between different types of paper.

Over $20 per group Ages 6 - adult 10 to 30 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 explore how engineers have improved roofing designs and materials in order to protect the contents of buildings.

$10 - $20 per group Ages 8 - 18 1 to 2 hours