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Showing results 581 to 600 of 640

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In this activity, learners create a large film of soap and experiment with what can and cannot pass through it.

$10 - $20 per group Ages 8 - 18 5 to 10 minutes
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How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

$10 - $20 per group Ages 8 - adult 10 to 30 minutes
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In this activity (page 10 of PDF), learners approximate the area of the uppermost cross section of an impact crater using a variety of square grids.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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Water sticks to all kinds of things in nature — flowers, leaves, spider webs - and doesn't stick to others, such as a duck's back.

$5 - $10 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.

$10 - $20 per group Ages 8 - 18 1 to 7 days
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In this activity, learners create a marble maze that contains sensors. As a metal marble triggers the sensors, the Pico Cricket turns on lights or spins motors.

Over $20 per student Ages 8 - adult 2 to 4 hours
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In this activity, learners conduct an experiment to investigate the effect of elevated levels on CO2 on plant growth.

$10 - $20 per group Ages 14 - 18 1 to 4 weeks
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In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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This outdoor activity (on page 2 of the PDF under SciGirls Activity: Sand Dunes) is a full inquiry investigation into how the amount of moisture in a sand dune relates to the number of plants growing

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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This simple activity uses paper and scissors to convey two key concepts to learners: the nanoscale is very small and working on the nanoscale requires special tools.

1 cent - $1 per student Ages 6 - adult 10 to 30 minutes
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In this demonstration, adult learners create a lava lamp using beer and nuts! Use this pub-themed activity to demonstrate the effects of buoyancy and bubbles.

$1 - $5 per group Ages 4 - adult Under 5 minutes
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This game introduces learners to the scale of the greenhouse gas problem, plus technologies that already exist to dramatically reduce our carbon emissions and prevent climate change.

1 cent - $1 per group Ages 14 - adult 2 to 4 hours
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In this activity (page 13 of the PDF), learners discover how weathering and erosion change the Earth’s surface.

$10 - $20 per group Ages 11 - 14 4 to 24 hours
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In this activity, learners design and build a toy top out of simple, everyday materials and have the option to use the toy as an artistic tool.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Build a car that runs on air. Using household materials, experiment with the power of air to create thrust powerful enough to move a homemade car.

$1 - $5 per student Ages 4 - 11 5 to 10 minutes
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Learners explore water adhesion and learn about why water molecules are more strongly attracted to some substances than others.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners play a game to simulate the food chain.

$1 - $5 per group Ages 6 - 11 10 to 30 minutes
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In this activity, learners investigate the history and development of agricultural biotechnology.

$10 - $20 per group Ages 11 - 14 45 to 60 minutes