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    Twin Cities Public Television
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    In this activity (on page 1 of the PDF), learners will use a magnifier to carefully examine samples of sand from different locations. They record their observations regarding the different grain...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this set of outdoor games, learners increase their awareness of the outdoor environment by going on a scavenger hunt and an out-of-place hunt. In the first game, learners hunt for things like...

    $5 - $10 per group Ages 4 - 11 1 to 2 hours
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    University of Nebraska State Museum
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    In this activity (on pages 24-34), learners explore the four-part stomach of cows (and other grazing animals called ruminants), and compare it to the human one-part stomach and its digestive...

    $5 - $10 per group Ages 8 - 14 1 to 7 days
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    Bryn Mawr College
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    In this laboratory activity, learners design an experiment to evaluate how environmental factors influence the growth of molds. Suggested questions to investigate include: (1) Does mold grow faster...

    $5 - $10 per group Ages 11 - 18 1 to 7 days
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    Lawrence Hall of Science
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    In this outdoor, mystery-solving activity, learners work like detectives, gathering evidence to identify the culprits that are attacking plants. Learners come to understand the impact of insect...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    Arizona Science Center
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    In this activity, learners explore cooked chicken wings and identify the various parts including: bones (radius, ulna, humerus, shoulder joint, elbow joint), tendons, and cartilage. Learners...

    $5 - $10 per group Ages 6 - 14 45 to 60 minutes
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    University of Utah
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    This is an educator-led demonstration of microarray technology using a model created from a pizza box and ping-pong balls. This “macroarray” model demonstrates how single-stranded DNA segments...

    $5 - $10 per group Ages 11 - adult 10 to 30 minutes