Across
- 3. ___________ _____________ occurs when the heat of magma invades existing rocks
- 5. ________ rocks are formed from hardened magma or lava
- 6. rich in iron, magnesium, and calcium
- 8. magma that has reached the earth's surface
- 9. this rock is made of separate rock articles and fragments that were eroded from an older rock.
- 11. melted rock beneath the earth's surface
- 13. metamorphic rocks with a __________ _________ have visible layers or bands aligned in planes.
- 15. Forms sediments that have been compacted and cemented together.
Down
- 1. _________ are particles of minerals, shells, and other remains of once-living things.
- 2. ________ rocks are light-colored, lightweight, igneous rocks
- 4. Metamorphic rocks with a _________ __________ have no visible layers or bands
- 7. clastic rock composed of rounded, pebble-sized rock fragments
- 10. clastic rock composed of clay-sized particles in flat layers
- 12. ________ __________ occurs when large pieces of the Earth's crust rub against each other
- 14. the process of change in the change in the structure and constitution of a rock