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    Children's Museum Of Houston
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    In this activity, learners create a gelatinous slime using guar gum powder and borax. Educators can use this simple activity to introduce learners to colloids. This activity page features a fun how...

    $10 - $20 per group Ages 6 - 18 30 to 45 minutes
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    The Exploratorium
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    This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.

    $1 - $5 per student Ages 4 - 11 10 to 30 minutes
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    Twin Cities Public Television
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    This is a quick activity (on page 2 of the PDF) about the "Tyndall effect," the scattering of visible light when it hits very small dispersed particles. Learners will shine a laser...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes
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    The Science House
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    In this chemistry activity, learners use guar gum to make slime. Use this activity to introduce learners to polymers, viscosity, and colloids. Extensions for this activity include challenging...

    $5 - $10 per group Ages 11 - 18 5 to 10 minutes
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    The Science House
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    In this chemistry activity, learners are asked to form a hypothesis about the behavior of milk as household detergents act upon it. Learners will observe a swirling effect occurring between the...

    $1 - $5 per group Ages 8 - 18 Under 5 minutes
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particles may be vs. their old...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours