Activity Number
217
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Central Concepts
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Molecular Sieve (1-page model)

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  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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Central Concepts

Key Concept:

A molecular sieve separates molecules by size.

Additional Related Concepts

Biology

  • Waste Disposal

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Additional Info

Additional Background

Sieves are the simplest methods of separating particles, and there are even sieves with pores so fine that they can separate molecules. Most naturally occuring solids are not porous, but zeolite is a natural mineral that is rich in pores and it is frequently used as a filter.

Frontier scientists are busy inventing new materials whose pore size can be controlled.

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Activity Credits

Created by CC Project: Molecular Workbench using Molecular Workbench

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Requirements

  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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NSF Logo
These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701, EIA-0219345, DUE-0402553, and 0628181.

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.