Metamorphic rocks started out as some
other type of rock, but have been
substantially changed from their original
igneous, sedimentary, or earlier
the 3 types of rocks
sedimentary rocks include
sandstone, limestone, and shale.
These rocks often start as sediments
carried in rivers and deposited in lakes
and oceans. When buried, the sediments
lose water and become cemented to form rock.
Igneous rocks form when hot, molten rock
crystallizes and solidifies