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Showing results 1201 to 1220 of 2492

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In this activity about light and perception, learners discover how a flash of light can create a lingering image called an "afterimage" on the retina of the eye.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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What does it mean to be alive? Is a cactus alive? Is a seed alive? Is the air we breathe alive? What are the necessary characteristics?

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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Learners complete two simple experiments to prove the existence of air and air pressure which surround us.

1 cent - $1 per group Ages 8 - 11 5 to 10 minutes
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In this experiment, learners float colored ice cubes in hot and cold water.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners will train to develop upper and lower body strength in their muscles and bones by performing body-weight squats and push-ups.

free Ages 8 - 14 1 to 4 weeks
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Learners model the ocean currents that carry hot water from the tropics to northern latitudes.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this inquiry-based activity, learners investigate the basic forces of flight as they construct their own paper glider that represents a rainforest creature from Borneo (large, tropical island in So

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners explore accuracy and precision.

Over $20 per group Ages 8 - 18 2 to 4 hours
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In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.

Over $20 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners complete simple exercises to investigate the relationship between force, area and pressure and their effects on materials.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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In this activity, learners will write a secret message that only their friends will be able to read.

$1 - $5 per student Ages 8 - adult 10 to 30 minutes
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In this activity learners will investigate magnetic and non-magnetic items in a sensory bottle.

$10 - $20 per group Ages 4 - 6 10 to 30 minutes
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In this activity, learners explore how the pendulum has been a reliable way to keep time for centuries.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this two-part activity, learners work in pairs to examine the four basic stages of a turbine engine.

Over $20 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners explore computer programming and the impact of computers on society. Learners build and test a program to turn a light on and off using an Arduino board.

Over $20 per group Ages 11 - 18 1 to 2 hours
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In this full inquiry activity (located on page 3 of the PDF under GPS: Kinetic Sculpture Challenge Activity), groups of learners will make predictions about which feature of a pendulum (mass, length,

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners explore the unique challenges in transportation engineering, such as devising a method for skiers or hikers to get to the top of a mountain.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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Break open that used musical toy and squish some Play-Doh over the circuit boards, and you will hear some weird and distorted sounds the manufacturer never intended!

$1 - $5 per student Ages 4 - adult 45 to 60 minutes
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Learn how to make and fly a paper helicopter! This simple activity includes a template (for the copter "blades") and instructions for folding, flying, and testing designs.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this fascinating and fun experiment, learners use chemistry to identify a mystery powder and to solve a "crime," a process similar to that used by real forensic scientists.

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