Rocks that form when magma or lava cools and hardens into solid rock 2. The series of continuous processes...

1. Rocks that form when magma or lava cools and hardens into solid rock
2. The series of continuous processes by which rocks change from one type to another over time
3. Rocks formed when layers of sediment are compacted and cemented together over time
4. Small pieces of rock, sand, or soil that are transported by water, wind, ice, or gravity