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Showing results 21 to 40 of 43

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In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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Learners observe and conduct experiments demonstrating the different properties of hot and cold materials.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners make plates levitate! Learners build "hovercrafts" using simple materials to explore friction and motion.

$1 - $5 per student Ages 6 - 11 5 to 10 minutes
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Learners follow the template to build and fly a paper helicopter.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners make their own "tornado" using two soda bottles and water.

free Ages 4 - 11 10 to 30 minutes
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In this activity, learners will engineer three different parachutes to test how well each one works.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.

free Ages 4 - adult Under 5 minutes
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In this activity, learners construct paper airplanes that twist and turn.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind.

free Ages 4 - 14 Under 5 minutes
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In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm.

free Ages 6 - 14 5 to 10 minutes
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In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.

$1 - $5 per student Ages 6 - 11 1 to 4 weeks
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In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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In this physics activity, learners will explore buoyancy.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this activity, learners watch a figure "magically" float up through the air.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this weather activity/demonstration, learners watch as a ping pong ball is suspended in a stream of air supplied by a hair dryer.

free Ages 6 - 14 5 to 10 minutes
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In this activity, learners build a hovercraft using a paper plate, cup, and simple motor.

$1 - $5 per student Ages 6 - 14 45 to 60 minutes
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The "Rocket Reactions" activity is an exciting way to learn about how materials interact, behave, and change.

$5 - $10 per group Ages 6 - adult 5 to 10 minutes
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In this activity, learners build mini-basketball courts and explore the laws of physics. Learners discover that everything you throw or shoot on earth travels in a parabola.

$10 - $20 per student Ages 6 - 18 30 to 45 minutes
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In this activity/demonstration, learners observe what happens when two ping pong balls are suspended in the air by a hair dryer. Use this activity to demonstrate how rain drops grow by coalescence.

free Ages 6 - 14 Under 5 minutes
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In this activity, learners explore force and motion by constructing cardboard cars that are propelled by balloons.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes