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    Twin Cities Public Television
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    This activity (located on page 4 of the PDF under GPS: Baby Dinosaurs Activity) is a full inquiry investigation to determine the age of fossils based on where they are discovered. Groups of...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    Lunar and Planetary Institute
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    In this activity, learners drop impactors onto layers of graham crackers! The process models how impacts throughout the Moon's history have broken rocks down into a mixture of dust, rocks, and...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners model hot spot island formation, orientation and progression with condiments. Learners squirt a thick condiment sauce on a coarsely woven fabric to model how volcanic...

    $1 - $5 per student Ages 8 - 18 5 to 10 minutes
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    The Exploratorium
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    This is a quick activity that shows how large amounts of rock and sediment are added to the edge of continents during subduction. You may ask, how can such a huge phenomenon be demonstrated quickly...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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    The Science House
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    In this simulation, learners use M&M™ candy to explore radioactive isotope decay. Learners pour out a bag of candy and count and record the number of candy pieces that have "decayed"...

    $1 - $5 per student Ages 11 - 18 30 to 45 minutes
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    Howard Hughes Medical Institute
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    This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific...

    $10 - $20 per group Ages 11 - 18 2 to 4 hours
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    Twin Cities Public Television
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    This activity (page 2 of the PDF under SciGirls Activity: Bogs) is a full inquiry investigation into decomposition. Groups of learners will carefully observe and record the appearance of items,...

    $10 - $20 per group Ages 8 - 14 1 to 4 weeks