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    Pratt School of Engineering, Duke University
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    Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days. By weighing the gum before and after chewing, they can determine the amount of mass...

    $1 - $5 per group Ages 11 - 14 2 to 4 hours
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    American Museum of Natural History
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    Learners work in teams to investigate how scientists use physical characteristics to classify living things. First, learners examine drawings of a variety of leaves from different species of oak...

    free Ages 8 - 18 45 to 60 minutes
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    American Chemical Society
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    Learners design their own experiment to determine which M&M color dissolves the fastest in water. Learners should have a plan to control variables such as type of plate, amount of water,...

    $1 - $5 per group Ages 6 - 14 30 to 45 minutes
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    University of California Museum of Paleontology
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    Using indirect methods, learners determine the shape and size of a piece of carpet hidden under a piece of plywood. This activity is an introduction to the process of scientific inquiry and...

    $10 - $20 per group Ages 14 - 18 30 to 45 minutes
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    University of California Museum of Paleontology
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    Learners manipulate opaque, sealed boxes and attempt to determine their interior structures. Each box contains a moving ball and one or more fixed barriers. Use this activity to introduce students...

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    Twin Cities Public Television
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    In this activity, learners will use food cans of many different properties (sizes, shapes, and weights) and set two cans on their sides at the top of a ramp. Learners will make predictions about...

    free Ages 8 - 14 45 to 60 minutes
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    University of California Museum of Paleontology
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    Learners investigate a pre-constructed mystery tube to determine its interior mechanism. Working in small groups, learners pose explanations (hypotheses) for what they are observing and test their...

    $1 - $5 per student Ages 11 - adult 30 to 45 minutes
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    University of California Museum of Paleontology
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    Learners imagine they are paleontologists in Florida, where they find (remove from envelope) paper "fossils" of some unknown creature, only a few at a time. Each time, they attempt to...

    1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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    University of California Museum of Paleontology
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    Learners explore the physical properties of a variety of balls and how they bounce. The point of the activity is not necessarily to have students arrive at a precise explanation for the phenomena...

    $1 - $5 per group Ages 11 - 18 30 to 45 minutes
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    University of Nebraska State Museum
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    This activity (on pages 15-23) combines interactive role-playing and graphing to introduce learners to the health affects of pollen. In the first part, learners role-play a detective on a medical...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours

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