Classifying Rocks and Igneous Rocks Vocabulary
Across
- 5. rock formed from cooled magma
- 8. size of crystals that cooled slowly
- 11. gneiss has this pattern of particles
- 13. a coarse grained rock
- 14. size of crystals that cooled quickly
- 15. has rounded grains of several rocks
- 18. make up most of the rocks in the Earth's crust
Down
- 1. rock formed from cooled lava
- 2. dark colored rock with a lower silica content
- 3. used by Incas to build fortresses
- 4. has jagged grains of several rocks
- 6. rock of layers formed of small particles of rock or the remains of plants and animals
- 7. quickly cooled forms no crystals
- 9. has holes from gas bubbles are trapped in fast-cooling lava
- 10. rock formed from intense heat and pressure
- 12. the look and feel of a rock's surface
- 16. light colored rock high in silica content
- 17. particles of minerals that make up a rock
- 19. rock formed from the cooling of lava or magma