jdw7806
Posts: 1
Joined: Thu Nov 15, 2007 2:42 pm

Need help with helping my daughter with Earth Science Proj

Postby jdw7806 » Thu Nov 15, 2007 2:47 pm

She want to do a project on what effect does freezing or boiling have on rocks. I'm looking for some examples.

Any help would be appreciated.

ChrisG
Former Expert
Posts: 1019
Joined: Fri Oct 28, 2005 11:43 am
Occupation: Research Hydrologist

Postby ChrisG » Thu Nov 15, 2007 3:19 pm

Hi,
Welcome to Science Buddies. Are you seeking examples of how changes in temperature affect rocks in nature? Perhaps your daughter would be interested in the natural processes of mineral weathering. The freeze-thaw cycle is a major factor in weathering and landscape evolution. There are many web pages devoted to this topic. A different example would be geothermal waters, which can expose near-surface rocks to boiling temperatures.

I hope that helps. Please let us know if you have further questions.

LisaBug
Former Expert
Posts: 26
Joined: Mon Oct 16, 2006 1:11 pm

Re: Need help with helping my daughter with Earth Science Pr

Postby LisaBug » Sun Nov 18, 2007 5:28 pm

Why are you looking at these effects?
What kind of 'rocks' are you interested in boiling and freezing? and why?

Please be careful boiling 'rocks'. Many commonly occuring rocks have arsenic, uranium, lead etc that can be harmful to your health.

This site may help you identify what type of rock you may have:
http://www.rockhounds.com/rockshop/mineral_id/

Although I know from experience that uranium ore is very hard to identify without a Giger counter. Your local fire department may be able to help you.

Good luck!
Lisa

jdw7806 wrote:She want to do a project on what effect does freezing or boiling have on rocks. I'm looking for some examples.

Any help would be appreciated.


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