| A | B |
|---|
| rock | hard substance composed of one or more minerals |
| igneous rock | rock formed from molten lava or magma |
| sedimentary rock | rock formed from the compacting and cementing of sediments |
| sediment | particles of rock or organic materials carried and deposited |
| metamorphic rock | rock formed by a change in temperature, pressure or chemistry |
| rock cycle | interrelated process that causes the continuous changing of rocks |
| extrusive rock | igneous rock formed on Earth's surface |
| intrusive rock | igneous rock formed beneath the Earth's surface |
| clastic rock | sedimentary rock formed from fragments of other rocks |
| organic rock | sedimentary rock formed from material that was once alive |
