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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.25 of PDF), learners investigate spores. Mushrooms produce millions of spores which are equivalent to the seeds of plants but without the massive food reserves. Spores are so...

    1 cent - $1 per student Ages 11 - 14 2 to 4 hours
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    National Aeronautics and Space Administration
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    In this activity, learners use raisins and seltzer water to understand why waves don’t move objects forward. Learners conduct two simple experiments to understand the circular movement of waves.

    1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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    NOAA
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    In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation. Learners compare the melting rate between chocolate left in the sunshine and chocolate...

    1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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    Aquarium of the Bay
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    In this hands-on art and science activity (page 4 of the pdf), learners brainstorm and discuss how humans use wetlands, then express their understanding of the subject in artwork. Depending on the...

    1 cent - $1 per student Ages 8 - 11 1 to 2 hours
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    California Academy of Sciences
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    In this activity, learners will examine various world data maps to combine the information and predict which areas could be tropical rainforests. This will help learners discover how living and non...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    In this activity (on the left side of page 5, continued on the right side of page 4 of the PDF), learners make models of colorful butterflies. The butterflies are made from pipe cleaners and either...

    1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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    University of Illinois Extension
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    In this activity, learners investigate soil conditions by creating a soil map. Learners record soil characteristics and compare the conditions of soil in different grid sections. Use this activity...

    1 cent - $1 per student Ages 4 - 14 1 to 2 hours
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    University of Nebraska State Museum
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    In this graphing activity (on pages 33-40), learners investigate how much and what kinds of food sea otter pups eat during their first year of life. Learners discover that young sea otters eat more...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    American Museum of Natural History
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    This activity has three story puzzles learners can solve to learn about life in the Arctic. Through this story-sequencing activity, learners will explore how life for polar bears and the native...

    1 cent - $1 per student Ages 4 - 8 30 to 45 minutes
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    NASA
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    In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced. Learners perform an...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours

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