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In this online game, learners practice memory recall. They are shown a collage of pictures for two minutes, then have to write down everything they remember and check how they did.

1 cent - $1 per student Ages 4 - 18 5 to 10 minutes
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Oboes's unique sound originates from the two small reeds a musician blows into. Make your own double reed instrument out of straw!

1 cent - $1 per student Ages 4 - 14 5 to 10 minutes
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By making models of light waves with paper, learners can understand why different colors appear in bubbles.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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Up close, an array of dots could look random, but take a step back, and an image forms. By tracing over an image, learners can create their own dot based image.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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Create beautiful spirals by drawing a straight line. This sounds crazy, but you can with a turntable (a record player or lazy susan), paper, and pen.

1 cent - $1 per student Ages 4 - 14 5 to 10 minutes
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In this activity, learners create angle-measuring devices--protractors--out of paper. Learners follow a series of steps to fold a square sheet of paper into a triangular Pocket Protractor.


1 cent - $1 per student Ages 11 - 18 5 to 10 minutes
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In this activity, learners use a pencil, magnets, and mat board to illustrate Newton's Second Law.

1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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Make a camouflage cut-out animal! Using patterned paper or magazine pictures from around the house, use your craft skills to make a paper animal that blends into its background.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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This Exploratorium activity can be used in many contexts because geysers are great opportunities for learning about heat and temperature changes as well as geological/space science phenomena.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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Things that are different sizes and stiffness vibrate differently, and in this Exploratorium Science Snack, you'll see how rings of various diameters react to vibration and external forces.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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Do grapes, yes the grapes from the grocery store, move in the presence of a very strong magnet?

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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Sound changes pitch relative to how you or the source of the sound is moving. Use this simple activity developed by the Exploratorium to experience the Doppler Effect yourself!

1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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In this activity, learners light an LED with five cents. Learners use two different metals and some sour, salty water to create a cheap battery.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes