A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type ... rocks are formed by magma that has cooled slowly, deep underground ...

A tractor-trailer driver has been charged after the vehicle they were driving overturned on Interstate 95 North in Petersburg ...

“Geologically-speaking, it’s quite hard to make granite without water and plate tectonics, which is why we really don’t see that type of rock on other planets,” said Professor Stephen ...