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In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity related to computer programming, learners give directions to a "robot" (either an adult or another learner) and find out which instructions the robot is able to follow, and how their

$1 - $5 per group Ages 6 - 18 10 to 30 minutes
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In this activity, learners explore sound by constructing an instrument toy that buzzes when you swing it.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this math game (Page 14 of the Are You Game? PDF), learners determine the probability of getting an even versus an odd product using the numbers on a regular deck of cards.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this activity learners compare the bounciness of warm and cold racquetballs to see if temperature makes a difference in how well they bounce.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, reuse two-liter bottles to create bowling pins. Learners practice math skills and develop a concept of verifying answers, while bowling and keeping score.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners will put together towers using building bricks, then take the tower apart and challenge themselves to use the same bricks used to build a bridge.

$10 - $20 per student Ages 4 - 8 10 to 30 minutes
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In this fun physics activity (page 9 of the pdf), learners take part in a paper airplane design challenge.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners build a model roller coaster to help the Mummy entertain the Atom's Family monsters. Learners assemble the roller coaster between two chairs using vinyl ceiling molding.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this math activity, learners make their own bubble wands and determine if the size of the wand affects the number of bubbles it produces.

$5 - $10 per group Ages 8 - 11 10 to 30 minutes
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In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.

$5 - $10 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners build mini catapults using paint paddles and a spoon. Use this activity to introduce learners to forces and projectile motion.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this activity, "space cadets" (learners) use writing and sequencing skills in addition to directional words/ordered pairs to guide Buzz Lightyear (from the movie "Toy Story") through a grid to reac

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners with explore the gases present in air. They will then build their own wind cannons and challenge family and friends to a friendly competition.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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During this hands-on activity, learners are briefly exposed to moviemaking and animation, when they create their own thaumatropes.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this hands-on activity, children create their own kites that can fly indoors. Learners are exposed to basic concepts of gravity and air resistance.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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This fun video explains how to make a batch of oobleck (or slime) and why this special substance is known as a "non-Newtonian" fluid. Watch as Mr.

$1 - $5 per group Ages 8 - 14 10 to 30 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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Learners build pan pipes out of drinking straws by cutting them to different lengths. Then, learners make music by blowing across the straws and playing some well-known songs.

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