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Bones are stiff, which helps us lift heavy things and walk around, but they are also somewhat flexible, which lets them bend slightly.

$10 - $20 per group Ages 8 - adult 30 to 45 minutes
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In this activity, learners explore inertia as they attempt to whip a strip of paper out from under two coins dangling on the rim of a water glass.

free Ages 6 - 14 5 to 10 minutes
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This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).

Over $20 per group Ages 11 - adult 2 to 4 hours
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Learners place an M&M candy in water and observe what happens. The sugar-and-color coating dissolves and spreads out in a circular pattern around the M&M.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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Space Guess Quest is a fun game that encourages participants to identify the many types of objects in space, from human-made spacecraft to nebulas, galaxies, stars, and worlds.

$1 - $5 per group Ages 4 - adult 30 to 45 minutes
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In this on site "field trip" activity (located on pages 6-9 of PDF), learners get hands-on experience identifying building materials by playing "Building Bingo".

free Ages 8 - 14 1 to 2 hours
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In this activity, learners test to see if carbon dioxide is present in the air we breathe in and out by using a detector made from red cabbage.

Over $20 per group Ages 8 - adult 10 to 30 minutes
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In this activity, learners discover how a super-absorbing material can be used to move a straw.

$10 - $20 per group Ages 4 - adult 5 to 10 minutes
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In this activity about light and reflection, learners use a special device called a Mirage Maker™ to create an illusion.

Over $20 per student Ages 8 - 14 5 to 10 minutes
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Learners mix a variety of substances with red cabbage juice. The juice changes color to indicate whether each substance is an acid or a base.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this physics activity (page 8 of the PDF), learners will make their very own working compass.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this physics activity, learners build their own rockets out of film canisters and construction paper.

$5 - $10 per student Ages 6 - 18 10 to 30 minutes
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Using a vertical wind tube and using simple materials, individuals and groups attempt to design a "satellite" that floats for at least 5 seconds.

$1 - $5 per student Ages 4 - adult 30 to 45 minutes
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In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

$1 - $5 per group Ages 11 - 18 Under 5 minutes
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In this experiment using sprigs of Elodea, learners will observe a natural process that removes carbon dioxide (CO2) from Earth's atmosphere.

$10 - $20 per group Ages 11 - 14 1 to 2 hours
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Learners construct a rocket from a balloon propelled along a guide string.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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In this activity, learners will explore the dynamics of air pressure by using a candle, a cup, and a dish of water.

$1 - $5 per student Ages 4 - 18 5 to 10 minutes
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In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge.

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