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Showing results 61 to 80 of 108

Marshmallow Puff Tube
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In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.

Holding Charge
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In this trick, learners discover how to stick a straw to the palm of their hand, window door, or anywhere using static electricity.

Twist and Spout
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In this activity, learners make their own "tornado" using two soda bottles and water.

Which Parachute
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In this activity, learners will engineer three different parachutes to test how well each one works.

Balloon Inside a Bottle
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In this activity about phase change and condensation, learners boil water in an empty pop bottle in the microwave.

The Power of Words
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This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.

Exploring How Robots Move
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In this activity, learners explore how pneumatics and hydraulics could be used to produce movement in a robotic arm.

Glider
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In this activity, learners construct paper airplanes that twist and turn.

Bronx Cheer Bulb
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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

Toasty Wind
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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.

"Boyle-ing" Water
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In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.

¡Ventanas de Burbujas!
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En esta actividad sobre la exploración e investigación, los aprendices harán ventanas de burbujas.
Musical Coathanger
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In this activity, learners turn an ordinary metal coat-hanger into a (very quiet) musical instrument.

Photosynthesis and Transpiration
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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.

Cartesian Diver
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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.

Imploding Pop Can
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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.

Why is the Sky Blue?
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In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.

Floating Head Cup
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In this activity, learners watch a figure "magically" float up through the air.

Updrafts in Action
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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.

Make Your Own Barometer
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In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer.