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    Oregon Museum of Science and Industry
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    In this activity, learners will design a way to identify a powder found at a crime scene by comparing it with known powders, with the goal of solving a crime. Learners will describe the various...

    $10 - $20 per group Ages 8 - 11 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    In this experiment, learners will conduct chemical and physical tests to identify mystery substances. This experiment is very flexible, allowing educators to determine the number of unknowns to...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners analyze mixtures of dyes using filter paper chromatography. They place spots of the different dyes at the bottom of a piece of filter paper, and hang the paper to touch the surface of...

    $1 - $5 per group Ages 8 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    In this hands-on activity (on page 2 of the PDF), learners experiment with lemon juice and paper to create a message that can only be revealed using chemistry. Using an oven as a heat source ...

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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    WGBH
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    In this activity, explore chromatography and the various colors that make up the ink in markers. Use this activity to investigate cohesion and adhesion. The online version of this activity is set...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    American Chemical Society
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    In this activity on page 2 of the PDF, learners conduct chemical tests on certain powders used in cooking. After completing the tests, learners try to figure out the identity of a mystery powder....

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    In this two-part activity, learners will extract their own DNA from their cheek cells and learn how DNA is analyzed and used to solve crimes. In the first experiment, learners extract DNA from...

    $10 - $20 per group Ages 8 - 11 45 to 60 minutes
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    Twin Cities Public Television
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    In this physical sciences activity, learners use science to solve a "crime." Learners collect trace evidence (glitter) and explore its characteristics, such as color, size, shape, and...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    Twin Cities Public Television
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    In this activity (page 1 of the PDF), learners will use a home video camera with a “night vision” mode to test how various inks appear outside the spectrum of visible light. In a darkened room,...

    Over $20 per group Ages 8 - 14 30 to 45 minutes
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    WGBH
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    In this optics activity, learners build a spy tool to secretly view things over walls or around corners. Learners discover that the mirrors inside the periscope reflect light to help you see what&...

    $5 - $10 per student Ages 6 - 11 10 to 30 minutes

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