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    Perkins School for the Blind
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    This activity was designed for blind learners, but all types of learners can explore means of physically separating a mixture using dissolving, filtration, and evaporation. Separating a sand/salt...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    University of Massachusetts Amherst
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    In this demonstration, learners explore the thermal properties of rubber. Learners investigate whether a rubber band contracts or expands when heated. Learners discover that when rubber is heated...

    $1 - $5 per group Ages 14 - adult 10 to 30 minutes
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    University of Texas Health Science Center
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    In this activity, learners work in groups to match craft sticks that represent chromosomes. Learners must define critical attributes of their chromosomes as they look for matching chromosomes. When...

    $1 - $5 per group Ages 11 - 18 1 to 2 hours
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    Astronomical Society of the Pacific
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    This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope. They will learn about how the eye works, how to use the...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    NISE Network
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    This hands-on activity demonstrates how a material can act differently when it's nanometer-sized. Learners compare the reaction rate of an effervescent antacid tablet that is broken in half...

    $1 - $5 per group Ages 6 - adult Under 5 minutes
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    COSI
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    In this biology activity (page 8 of the PDF), learners will determine whether they are "tasters" or "non-tasters", test selected individuals from their families and peer group...

    $1 - $5 per student Ages 14 - 18 1 to 7 days
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    Berkeley Natural History Museums
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    Learners use a variety of beans to represent a variety of species, and scatter these beans over a large piece of paper representing the environment. They then use random sampling methods to catalog...

    $1 - $5 per group Ages 11 - 18 45 to 60 minutes
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    The Exploratorium
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    Make your own speaker with a magnet, wire, and paper cup! If you have a radio with a headphone plug and an old pair of headphones, this is a great tinkering activity.

    $1 - $5 per student Ages 8 - adult 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk. Using food coloring and soap, they discover that milk is an emulsion, a special...

    $1 - $5 per group Ages 4 - 18 5 to 10 minutes
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    The Exploratorium
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    Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator. This activity also has helpful...

    $1 - $5 per student Ages 8 - 18 10 to 30 minutes

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