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Function:

Stoppers are used to close flasks and test tubes from the environment. Stoppers come in many forms such as cork, rubber and plastic film that stretches over the opening.



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NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

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Update: June 2012
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