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In this activity, learners develop an understanding of cylinders and volume as they compare two sizes of popcorn buckets.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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This great "re-use it" activity will demonstrate how to transform a greeting card into a box. Once constructed, the box can have many uses like holding special notes or keepsakes.

1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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In this activity, learners construct a simple game to test their hand-eye coordination and steadiness of hand.

1 cent - $1 per student Ages 6 - 14 30 to 45 minutes
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In this activity, learners use their understanding of probability to guess which color will be drawn from a bag.

1 cent - $1 per group Ages 4 - 8 5 to 10 minutes
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In this math activity, learners use non-standard measurement (paces) to find the distance from one point to another. Learners practice estimating and measuring distances .

1 cent - $1 per student Ages 4 - 8 5 to 10 minutes
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In this activity, learners discover if carbon dioxide has an effect on temperature.

1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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In this activity, learners investigate feeding relationships. Learners complete a food web and then make a mobile to represent a food chain.

1 cent - $1 per student Ages 6 - 14 45 to 60 minutes
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In this activity, learners practice counting and multiplication as they figure out how many animal body parts they have to examine as "Dr. Vet."

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this activity (located on page 2 of PDF), learners explore alternative uses of a simple paper cup, dubbed a "mystery item." Learners act as detectives and explore the properties and functions of th

1 cent - $1 per student Ages 4 - 11 10 to 30 minutes
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In this activity, learners cut a shape into two equal sized pieces and use their knowledge of geometry and space to prove that the two parts are equal.

1 cent - $1 per student Ages 4 - 8 10 to 30 minutes
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In this math activity, learners play a game in which every roll can earn you counters, but if you roll the wrong number (6), you have to put everything back.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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This activity introduces learners to Native Americans as people who depended upon nature in the past and continue to emphasize the importance of nature in the present.

1 cent - $1 per group Ages 4 - 11 30 to 45 minutes
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In this activity on page 60, learners examine and simulate wildlife entanglement by experiencing what it might be like to be a marine animal trapped in debris.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this math activity, learners jump and measure how far they can jump on different surfaces using different jumping techniques.

1 cent - $1 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners plant seeds and watch them sprout and grow inside a CD case.

1 cent - $1 per student Ages 4 - 11 1 to 7 days
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In this activity, learners use information gathered from a variety of sources to design and make their own insect.

1 cent - $1 per student Ages 4 - 14 45 to 60 minutes
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This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.

1 cent - $1 per student Ages 6 - adult 45 to 60 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