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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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    NASA
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    This interactive demonstration reintroduces learners to three states of matter (solid, liquid, gas), and introduces them to a fourth state of matter, plasma. This activity also explores the...

    Over $20 per group Ages 8 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners observe a sealed test tube containing a small amount of solid stearic acid. Under adult supervision, learners place the test tube into a beaker of hot water and observe the white stearic...

    $5 - $10 per group Ages 11 - 18 5 to 10 minutes
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    Astronomical Society of the Pacific
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    In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets. Learners will investigate the ingredients in comets and how...

    $5 - $10 per group Ages 6 - adult 10 to 30 minutes
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    Mount Holyoke College
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    In this chemistry investigation, learners combine common cooking substances (flour, baking powder, sugar, salt, pepper, oil, water, food coloring) to explore mixtures. Both homogeneous (whole thing...

    $10 - $20 per student Ages 4 - 8 10 to 30 minutes
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    Institute of Physics
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    This is a highly visual demonstration that illustrates both the effects of density and chemical reactions. Like a density column, volcano eruption, and Alka-seltzer reaction all in one, learners...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    Lawrence Hall of Science
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    En esta actividad, los aprendices experimentarán con las tres fases del agua. Intentarán controlar la rapidez de los cambios de estado al manipular la temperatura y la presión del agua, hielo, y gas.

    1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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    Mount Holyoke College
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    In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again. Then they use a notebook (a...

    $1 - $5 per student Ages 4 - 8 10 to 30 minutes
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    Make
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    In this chemistry meets cooking activity, learners make carbonated, vanilla ice cream using dry ice and denatured ethanol, which are both inexpensive and accessible. This process to make ice cream...

    Over $20 per group Ages 8 - adult 45 to 60 minutes
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    Mount Holyoke College
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    In this two-part activity, learners explore the properties of liquid crystals, which are responsible for why mood rings change color. In the first experiment, learners will see how liquid crystals...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes

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