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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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    University of Washington
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    In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste. Learners dry their tongues with clean paper towels and then taste samples of salt,...

    $1 - $5 per group Ages 8 - 18 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Using yeast, sugar, and water, learners create a chemical reaction which produces carbon dioxide (CO2) gas inside a 2-liter bottle. They use this gas to inflate a balloon. This reaction shows the...

    $1 - $5 per student Ages 6 - 18 10 to 30 minutes
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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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    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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    Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house. Red cabbage juice is purple in water (neutral), pink or red in vinegar ...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    University of Nebraska State Museum
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    In this activity (on pages 10-15), learners investigate starch in human diets and how plants make starch (carbohydrates) to use as their food source. Testing with a dropper of iodine in Part One,...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    NOAA
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    In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition. Learners use candy to represent elements involved in the chemical...

    $5 - $10 per group Ages 14 - 18 1 to 2 hours
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    COSI
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    In this biology activity (page 8 of the PDF), learners will explore how saliva assists in the beginning of the digestive process. By comparing chewed and unchewed crackers, they will see first hand...

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

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