Science Fair Projects Ideas - Keystone (architecture)

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For information on any area of science that interests you,
enter a keyword (eg. scientific method, molecule, cloud, carbohydrate etc.).
Or else, you can start by choosing any of the categories below.

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Keystone (architecture)

In architecture, a keystone is the stone at the top of an arch. It the supporting element for the entire arch— without it the arch would collapse.

See also

Science Fair Project Encyclopedia Contents Page
10-26-2009 08:16:03
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