Repost: Science (Lilly)
posted by Writeacher .
Written Communication - Lilly, Saturday, April 21, 2007 at 8:48pm
What one thing is required for a rock to be called a sedimentary?
Written Communication - Lilly, Saturday, April 21, 2007 at 8:52pm
I know that "sedimentary rocks are formed when chemical reactions, tremendous heat, and/or great pressure change existing rocks into new knids of rocks. These new rocks (metamorphic rocks)have physical and chemical properties that are usually quite different from the original rocks."
A sedimentary rock is made up of sand and stones that have been deposited. Check these sites for more information.