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    American Physical Society
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    Learners shine the light of a laser pointer through sheets of fabric that all have a different number of threads per inch. By looking at the patterns created, learners calculate the wavelength of...

    $5 - $10 per group Ages 11 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners "draw" with frozen tempera paint. The ice cubes are prepared the day before by placing watered down tempera paint and popsicle sticks in ice cube trays....

    1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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    Cornell Center for Materials Research
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    In this activity (pages 5-7), learners investigate the properties of smart materials, which are materials that respond to things that happen around them. Learners are introduced to the concept of a...

    $5 - $10 per student Ages 8 - adult 10 to 30 minutes