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Geology

There's Nothing Hard About Rocks!

Sun, 01/13/2013 - 09:29 | Virginia Johnson
in
There's Nothing Hard About Rocks!

Rocks come in all shapes and sizes, but what kind are they? You can’t ask them, but sometimes, if you know how to listen, they’ll tell you anyway.

The shape and size of a rock doesn’t tell you much about what it’s made of.
Big rocks break into smaller rocks all the time. But there are other things to look for that can give you their I.D.

A Crack in the Edge of the World: America and the Great California Earthquake of 1906

in

By Simon Winchester

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Winchester brings his storytelling abilities, as well as his understanding of geology, to the extraordinary San Francisco Earthquake, exploring not only what happened in northern California in 1906 that leveled a city symbolic of America's relentless western expansion, but what we have learned since about the geological underpinnings that caused the earthquake.

Also available on audio.

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Waiting for Aphrodite: Journeys Into the Times Before Bones

in

By Sue Hubbell

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In this book, the author takes us on a journey through the mysteries of time -- geological, biological, and personal -- as she writes of the evolution of life on this planet and the evolution of her own life: her childhood next to a Michigan graveyard; the three colleges where she "learned three things;" her twenty-five years keeping bees on a farm in the Ozarks; and finally her move to a "strange little house" in a small Maine town, "the place I wanted to grow old in."
Also available on audio.

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Earthshake : Poems From the Ground Up

in

By By Lisa Westberg Peters and Cathie Felstead (illustrator)

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Presents twenty-two poems about geology. End notes provide information about the earth's surface and interior, types of rocks, and how volcanoes, glaciers, and erosion modify the landscape. J 811 Pe
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Earthshake: Poems from the Ground Up

in

By Lisa Westberg Peters

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Twenty-two poems about geology, some serious, some silly, plus information about the earth's surface and interior, types of rocks, and how volcanoes, glaciers, and erosion modify the landscape.

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August Is National Parks Month

Mon, 08/10/2009 - 13:30 | Virginia Johnson
in

Camping, fishing, hiking, history, grand vistas, and horseback riding--there are so many possibilities in our national parks.

The Power of Magnetism

Fri, 05/22/2009 - 08:57 | Virginia Johnson
in

What do the Earth, electric motors, and your computer all have in common?
These things are all influenced by magnets.

The Earth has a liquid metal core that acts like a bar magnet. It gets its magnetism from being near electrical currents beneath the surface. Because the Earth is not perfectly shaped, every so often the direction of the field will change. Scientists have found evidence that this has occurred at least 171 times over the past 71 million years. How do they know that? Magnets!

Alum Spring Park: A Walk Through History

Fri, 04/03/2009 - 14:12 | Steve Johnson, Robert Hodge, and Barbara Crookshanks
in

Alum Spring Park is a 34-acre woodland retreat off Greenbriar Drive with a playground and hiking trails. Its sandstone cliff, also known as the Alum Spring Rock, is 400 feet long and 40 feet high.