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    NOAA
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    In this experiment, learners will investigate the release of carbon-containing gas from living and nonliving sources. Learners scratch the surface of a limestone rock and observe what happens when...

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes
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    Bridge: Online Ocean Science Education Resource Center
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    In this data analysis and environmental science activity, learners examine the effects of pollution on amphipods using data from the Chesapeake Ecotox Research Program. Learners calculate the...

    $1 - $5 per student Ages 14 - 18 45 to 60 minutes
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    EPA
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    Learners will understand the relationship between climate change and sea-level rise. In the first activity, they will learn that heated water causes sea level to rise through a process called...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours
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    Community Science Workshop Network
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    In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind. These activities can be used individually or...

    $1 - $5 per group Ages 4 - 11 45 to 60 minutes
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    Lawrence Hall of Science
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    In this activity, learners explore a bucket of sand and beach objects. First they sort items using observable characteristics, then they turn hard candy into "candy sand" to model where...

    $1 - $5 per group Ages 4 - adult 10 to 30 minutes
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    Colorado State University
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    In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp to warm up a world map placemat. The placemat will warm up, so it will emit...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    NOAA
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    In this quick activity, learners observe how wind creates ocean currents. By blowing (through straws) on pepper suspended in water, learners will notice how the pepper moves in a clockwise motion,...

    $1 - $5 per group Ages 6 - 14 5 to 10 minutes
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    Twin Cities Public Television
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    In this activity (page 2 of PDF), learners will model how caves are formed by placing one piece of chalk in a cup of vinegar and another piece in a cup of water, then watch and record their...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    Colorado State University
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    This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset. Learners observe as a special "sunset egg" and a white light reveal...

    $1 - $5 per student Ages 8 - 14 5 to 10 minutes
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    NOAA
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    In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water. Learners explore this phenomenon by testing if two cans of...

    $1 - $5 per group Ages 6 - 14 Under 5 minutes

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