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Activity Number
217
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Overview and Learning Objectives
Central Concepts
Additional Info
Activity Credits
Requirements

Molecular Sieve (demo)

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This Activity Requires:

  • 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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Overview and Learning Objectives

Students will adjust gravitation and temperature in order to observe the way a molecular sieve is capable of separating several molecular species.

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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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Last Update: 08/05/2008 Maintainer: CC Web Team (webmaster@concord.org)
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Copyright © 2008, The Concord Consortium.
All rights reserved.

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These materials are based upon work supported by the
National Science Foundation under grant number DUE-0402553

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.