Science Days - September -
About Earth Science

FIRST: select a date from the pull-down menu on the right,

then choose GO to fetch the information about our chosen science fact or event for that day.
A small window will appear with the information about the science event.
Be sure to close that window so that you can continue investigating other days.

Menu:

To a year of Science Days - collections of science information.

NOTE:
On these pages, one billion is the US billion and equals 1,000 million.
(In the UK one billion is one million million - a much larger number.)

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References:
101 Things Everyone Should Know About Science by James Trefil; published 1992, Doubleday, NY.
Encyclopedia Britannica
Physical Geology by Leet and Judson published by Prentice Hall

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Phone: (530)756-0191     Fax: (530)756-1227