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    American Chemical Society
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    In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways. First learners compare the way baking soda...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    American Chemical Society
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    Learners investigate signs of a chemical reaction when they mix vinegar and baking soda. In addition to a gas being produced, learners also notice the temperature decreases. Learners can quantify...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    American Chemical Society
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    Learners investigate how the temperature of water affects its density. Learners place colored hot and cold water in a cup of room-temperature water to see that cold water sinks while hot water...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    American Chemical Society
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    Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float. Learners will use this idea to...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    American Chemical Society
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    In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult. Although the crushing test will not give conclusive results, it is a...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    American Chemical Society
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    In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly. By...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Lawrence Hall of Science
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    In this activity, learners use candy pieces and a cookie to make an accurate model of the Sun they can eat. Parts of the delicious model include solar granules, sunspots, and solar prominences....

    $1 - $5 per student Ages 6 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun. After creating the tracker with simple materials, learners measure the...

    $1 - $5 per student Ages 6 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    In this activity, learners make their own pinhole viewer in order to measure the size of the sun. After using the viewer to project circular image of the Sun on paper, learners use ratios and an...

    $1 - $5 per group Ages 8 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    Although we may not admit it, all humans fart or pass some gas. In this activity, learners make their own model to mimic food passing through intestines and discover what releases gas. Learners...

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

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