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    In this combination chemistry and physics activity, learners explore water absorption in dried beans or peas and learn how this affects their physical properties. They observe changes in size, skin...

    $1 - $5 per student Ages 6 - 11 1 to 7 days
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    In this activity about light, learners explore how water can refract light and change the way they see things. In the "Now Explore" section, suggestions for other liquids are given, and...

    1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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    This is an online activity about simple machines. Learners will try their hand at putting these amazing devices to work. They will use several simple machines to help "build" a tree house...

    free Ages 8 - 14 5 to 10 minutes
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    In this weather activity which requires adult supervision, learners will get a chance to make a cloud right here on Earth! They learn about the different ingredients a cloud needs in order to form,...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    In this chemistry activity, learners will test the pH of various foods and household substances using cabbage. They will explore the concept of acidic and basic chemicals, learn that pH is a common...

    $5 - $10 per group Ages 8 - 11 10 to 30 minutes
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    In this yummy activity about soil (page 9 of PDF), learners will create layers of soil using food. They will learn about the composition and role of each layer. Though this was created as a post...

    $1 - $5 per student Ages 8 - 11 30 to 45 minutes
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    In this activity (page 7 of the PDF), learners will investigate the contents of owl pellets. Learners will discover how owls digest their food as well as the kind of animals they eat. Although this...

    $5 - $10 per student Ages 8 - 14 30 to 45 minutes
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    In this physics activity, learners build their own rockets out of film canisters and construction paper. Learners discover how a chemical reaction (from a mix of water and Alka-Seltzer) creates gas...

    $5 - $10 per student Ages 6 - 18 10 to 30 minutes
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    In this mathematics activity, learners use a map to determine the coordinates of and distance between two locations--both by road and "as the crow flies". They account for any differences...

    free Ages 8 - 11 10 to 30 minutes
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    In this activity about archaeology, learners will explore different Egyptian hieroglyphs and recognize their meanings and uses. They will also create their own hieroglyphs and use both to write...

    free Ages 4 - 11 30 to 45 minutes

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