Wednesday, April 22, 2009

ROCKS AND MINERALS


Hello Boys and Girls!

As you know boys and girls yesterday we had a lesson on the difference between rocks and minerals and explained the difference between how they are used. In today's lesson at school we learned to describe the differences between igneous, sedimentary and metamorphic rocks and how they are formed.
**Remember Igneous rocks form when hot liquid rock from below the earth's surface rises above the surface. Sedimentary rocks form when small pieces of the earth that have been worn away by wind and water accumulate at the bottom of rivers.
Metamorphic Rocks form when pre-existing rocks are changed by heat and pressure.
Heres a website that teaches more about the difference between the three different type of rocks as well as some interesting facts that you can learn. I would like you to find at least 1 interesting fact from the website and bring it into class tommorow.

I look forward to hearing your amazing facts!


Click on ROCKS AND MINERALS to go directly to the website.

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