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    American Chemical Society
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    Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles. This way, learners can alter the amount of...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    American Society for Microbiology
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    A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution. After trading papers amongst the group, learners test...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    American Chemical Society
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    Learners add calcium chloride to a baking soda solution and observe an increase in temperature along with the production of a gas and a white precipitate. These are all signs of a chemical reaction...

    $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 work in pairs to design, construct, and test a device that exhibits positive, neutral, and negative buoyancy. They test a number of different objects in water to see if they sink or float....

    $1 - $5 per group Ages 8 - 11 45 to 60 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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    New Jersey Department of Education
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    This activity has learners observe water and compare it to other liquids. They stir and scoop the liquids, drip them onto various materials, drop various objects into the liquids, and record what...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners separate the protein from milk and and use it to make their own glue. They will explore why there are so many different kinds of glue, and what uses different glues would...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    This lesson gives full instructions for making cabbage juice indicator, a procedure sheet for learners to record observations as they use the indicator to test materials, and extension activities...

    $1 - $5 per group Ages 6 - 14 30 to 45 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners use red cabbage juice and pH indicator paper to test the acidity and basicity of household materials. The activity links this concept of acids and bases to acid rain and other pollutants....

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes