Scientists sort rocks into three major groups: igneous (molten rock that has cooled), metamorphic rock (rock transformed by heat and pressure), and sedimentary rock (rock made from sediment pressed together).
(Scientists; sort; rocks; into three major groups) (molten rock; has cooled; ) (rock; transformed; by heat and pressure) (rock; made; from sediment) (sediment; pressed together; )
Scientists molten rock rock rock sediment
sort has cooled transformed made pressed together
rocks into three major groups
by heat and pressure
from sediment