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    NOAA
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    In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials. Learners group together and link arms or hold hands to form chemical...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    NOAA
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    In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how...

    free Ages 8 - 14 45 to 60 minutes
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    NOAA
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    In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere. Learners conduct the experiment by placing a large plastic bag over a living limb...

    1 cent - $1 per group Ages 6 - 14 2 to 4 hours
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer. In doing so, they need to...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours
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    NSBRI
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    In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants. They will observe that some behaviors and functions of living...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    NSBRI
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    In this activity (on page 12 of the PDF), learners make a sundial (shadow clock) appropriate for their geographic location in the northern hemisphere and use it to tell time. This is an...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    4-H
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    In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants. Then, learners plan, design and build compost bins...

    Over $20 per group Ages 11 - 14 1 to 4 weeks

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