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What is glass made of?(Science Letters? What makes popcorn pop?)(Brief article)
Highlights for Children
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October 1, 2008|
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COPYRIGHT 2008 Highlights for Children, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Emily Snyder, Age 9
Georgia
[ILLUSTRATION OMITTED]
Glass is made from a mixture of sand and other materials. Just plain sand can be made into glass, but it must be heated to about 3,000 degrees Fahrenheit. It's both difficult and expensive to bring a substance to such high heat. It's also possible to ...
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