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Showing results 161 to 180 of 241

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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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Explore the effects of gravity on a slowly falling object: a parachute you make out of plastic bags, string and stones.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners observe what happens when they give a light source like a neon glow lamp a "Bronx Cheer." The lights appear to wiggle back and forth and flicker when learners blow air throu

free Ages 8 - 14 5 to 10 minutes
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In this engineering design challenge, learners build an octopus-inspired suction pad that can grab an object and hold it tightly in the air.

$5 - $10 per student Ages 4 - 18 1 to 2 hours
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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 explore how sound travels through solid objects better than through air. Leaners attach a metal clothes hanger to a piece of string and hold it to their ears.

$1 - $5 per student Ages 6 - 18 5 to 10 minutes
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In this activity, learners explore why humans sweat. Learners compare the effects of heat on a balloon filled with air and a balloon filled water.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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In this activity, learners design and build their own parachute using household materials with the goal of landing their passenger safely on a target.

$5 - $10 per group Ages 4 - adult 10 to 30 minutes
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In this weather activity, learners build their own wind detector and test for the presence of convection currents in their indoor location.

$1 - $5 per student Ages 8 - 11 30 to 45 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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Learners cut and fold a paper helicopter from the template in this PDF. They practice twirling the helicopter and observe what happens as they modify their tries.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners make a barometer, an instrument to measure change in air pressure.

$5 - $10 per group Ages 8 - 14 1 to 7 days
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In this activity, learners discover that two pendulums suspended from a common support will swing back and forth in intriguing patterns, if the support allows the motion of one pendulum to influence t

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners turn an ordinary metal coat-hanger into a (very quiet) musical instrument.

1 cent - $1 per student Ages 8 - 18 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 dramatic activity/demonstration about phase change and condensation, learners place an aluminum can filled with about two tablespoons of water on a stove burner.

free Ages 8 - 14 5 to 10 minutes
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This is a great activity for investigating the basics of lift and drag as they pertain to flight. Learners will discover how to avoid "taking a nosedive" by building their own paper airplane.

1 cent - $1 per student Ages 6 - 14 10 to 30 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