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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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    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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    BioEd
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    In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    New Jersey Department of Education
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    Over the course of several days, learners explore the property of water that helps plants move water from roots to leaves or gives paper towels the capacity to soak up water. Learners will observe...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners use open inquiry to learn about the process of science as well as gain experience regarding the Law of Conservation of Mass, dissolution, and density. Learners replicate...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    New Jersey Department of Education
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    Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms. Placing paper flowers in water mixed with food...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Through discussion and hands-on experimentation, learners examine the geological (ancient) carbon cycle. They investigate the role of dinosaurs in the carbon cycle and the eventual storage of...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes