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Showing results 681 to 700 of 1645

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In this activity, learners explore how distance can affect the way we perceive the size of an object.

free Ages 4 - 18 5 to 10 minutes
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Pairs of learners play the roles of programmer and robot. The programmer gives specific directions to the robot to accomplish a simple task (e.g. walk across the room and pick up a pencil).

free Ages 8 - 11 10 to 30 minutes
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These math posters have questions written on them, such as: How many colors can you name in a minute? or How many seconds can you balance on one foot?

free Ages 4 - 14 30 to 45 minutes
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In this simple and fun activity, learners build a tower of cups to explore distribution of weight. Learners make predictions about their towers and test their designs.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this activity on page 6 of the PDF, learners use glue instead of glass to create artwork that can be hung in a window.

$1 - $5 per student Ages 6 - 14 4 to 24 hours
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In this activity, learners explore in what ways the shape of the land and the pull of gravity influence how water moves over Earth.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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This activity provides instructions for making an aircraft that can really fly using a straw and paper hoops!

$1 - $5 per student Ages 4 - 11 10 to 30 minutes
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In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity on page 10 of the PDF, learners develop an experiment to answer the following question: "How much water can the hydrogel in a baby diaper hold?" Use this activity to explore polymers,

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners will explore how computers represent pictures using pixels.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this engineering/design/arts and crafts activity, learners design and build "platforms" or "bridges" that can hold weight, and test which glue makes the strongest structure.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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In this activity, learners construct a paper glider to experiment with aerodynamic forces.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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This activity provides step-by-step instructions on how to build a rain stick, a musical instrument originating in South America.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

free Ages 6 - adult 30 to 45 minutes
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In this activity, learners build a speedboat using paint paddles, a propeller, and film canister. Learners attach a simple circuit and motor to the boat to power the propellers.

$10 - $20 per student Ages 6 - 18 30 to 45 minutes
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In this activity, learners observe and describe the physical and behavioral characteristics of insects, including crickets.

Over $20 per group Ages 8 - 11 1 to 2 hours
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In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity, learners explore sound by constructing their very own instruments using PVC pipes, soda bottles, and a straw.

$5 - $10 per student Ages 6 - 11 45 to 60 minutes