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    Massachusetts Institute of Technology
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    This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes). There is a "wet lab"...

    Over $20 per group Ages 11 - adult 2 to 4 hours
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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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    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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    Oregon Museum of Science and Industry
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    Learners use filter paper and water to analyze six different markers. They mark the paper with ink, and dip the paper in water. The water travels up the paper and dissolved ink travels with it. The...

    $1 - $5 per group Ages 4 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners separate a mixture of pebbles, salt crystals, and wood pieces. They add water and pour the mixture through a strainer. The pebbles are left in the beaker, the wood is...

    $1 - $5 per group Ages 4 - adult Under 5 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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    WGBH
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    In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.

    $1 - $5 per student Ages 6 - 11 5 to 10 minutes
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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 use it to investigate heterogeneous and homogeneous mixtures and solutions, identify the differences, and explore the...

    $1 - $5 per student Ages 11 - 18 10 to 30 minutes
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    Mount Holyoke College
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    In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers. First, they use pure rubbing alcohol as the liquid phase, then...

    $1 - $5 per student Ages 8 - 14 30 to 45 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners add dilute bleach solution to water that has been dyed with yellow, blue, and green food color. Using a chemical reaction (bleaching), learners can identify different...

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

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