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In this activity, learners will learn about a person they admire (famous, family or otherwise) or even themselves and create a life-sized silhouette.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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In this "Sid the Science Kid" activity, learners get their hands dirty by playing in a container of soil. Then they compare the effectiveness of cleaning their hands with just a paper towel vs.

1 cent - $1 per group Ages 4 - 6 10 to 30 minutes
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This is an activity about robotics programming. Learners will discover how precise programmers have to be as they instruct a friend to make a peanut butter and jelly sandwich.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity, young learners use their sense of touch rather than sight to identify a mystery object in a bag. Learners take turns acting as "peekers" and "sensers" throughout the game.

$1 - $5 per group Ages 4 - 6 10 to 30 minutes
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In this activity (15th activity on the page) about the sense of touch, learners use glue and cardboard to construct a maze they use with their eyes closed.

1 cent - $1 per student Ages 4 - 14 30 to 45 minutes
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In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

1 cent - $1 per group Ages 4 - 11 45 to 60 minutes
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In this activity, learners investigate different types of bird beaks using household items which mimic different beak examples.

$1 - $5 per group Ages 4 - 8 10 to 30 minutes
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In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins.

$1 - $5 per group Ages 4 - 14 1 to 2 hours
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In this math game, learners solve a mind-twisting puzzle using dominoes. Use this activity to help learners practice counting, adding, and solving problems.

$1 - $5 per student Ages 4 - 8 5 to 10 minutes
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This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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In this "Sid the Science Kid" activity from Episode 108: My Ice Pops, learners observe reversible change while thinking about ways to make ice melt.

$1 - $5 per group Ages 4 - 6 2 to 4 hours
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En esta actividad, los aprendices usarán la lógica para ganar un juego. Dos personas toman turnos quitando uno o dos "cuerdas" de las estacas en el suelo.

1 cent - $1 per group Ages 4 - 11 5 to 10 minutes
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In this activity, learners will explore two-dimensional shapes that are found in three-dimensional shapes. Learners will explore geometry, design, color and tool use through this activity.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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In this activity, learners will create their own lava lamps. Learners will explore density, effervescence and chemistry through this activity.

$1 - $5 per student Ages 4 - 14 30 to 45 minutes
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In this activity, learners will decide together on a question about how far, long or high the group could reach together.

free Ages 4 - 14 10 to 30 minutes
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Learners use a commercially available toy to experiment with density. They fill a chamber in the toy submarine with baking powder and release it into a tank of water.

$1 - $5 per group Ages 4 - 14 5 to 10 minutes
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In this activity, learners will explore how animal in cold areas stay warm.

$1 - $5 per student Ages 4 - 11 10 to 30 minutes
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In this activity, learners take a turn contributing a closed figure made of six squares to a large grid; each must be different from all the others on the grid so far.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes
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Balance a ball in the air with a hair dryer! This Exploratorium produced activity shows learners concepts like lift and air streams. You can try many different angles, speeds, and ball types.

1 cent - $1 per student Ages 4 - 18 Under 5 minutes
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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

$1 - $5 per group Ages 4 - adult Under 5 minutes