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    BioEd
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    In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    WGBH
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    In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue. Learners experiment with...

    $1 - $5 per student Ages 6 - 11 45 to 60 minutes
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    Science Friday
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    Learners explore the variables that affect the properties of ice and the places where different types of ice are found. Using evidence from informational text and multiple media resources, as well...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Community Science Workshop Network
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    In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors). Use this activity to introduce learners to concepts related to optics, light,...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    The Science House
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    In this chemistry activity, learners use spaghetti to explore density and chemical reactions. Learners will discover how a solution of baking soda and vinegar can make spaghetti float and even ...

    $1 - $5 per group Ages 6 - 18 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners combine hydrogen peroxide with three different forms of potato: raw chunks, ground chunks, and boiled chunks. They observe the difference in bubbling of the three forms, and inferring the...

    $1 - $5 per group Ages 11 - adult 5 to 10 minutes
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    University of Wisconsin-Madison
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    Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle. The fermentation process takes from 3 days to 2 weeks to complete, and learners measure the...

    $1 - $5 per group Ages 4 - 14 1 to 4 weeks
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    BioEd
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    In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar. The first part of the activity (candle burning) should be conducted...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    BioEd
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    In this food science activity, learners explore digestion and proteins by observing the action of meat tenderizer on luncheon meat. This lesson guide includes background information about digestion...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    Oregon Museum of Science and Industry
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    In this chemistry activity, learners fill two test tubes with a solution of "artificial stomach fluid," consisting of hydrochloric acid in the same concentration as in human stomachs,...

    $1 - $5 per group Ages 14 - adult 5 to 10 minutes

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