Across
- 2. One of the three minerals that makes up Granite
- 6. one of the products from a volcano
- 7. Rocks formed from cooling magma
- 9. Rocks formed from magma cooling underground
- 10. Crystals formed slowly are usually......
- 12. The thickest earth layer
- 15. Rocks formed by magma reaching the surface
- 16. Crystals bformed very quickly are .....
- 17. The study of rocks
- 18. The outer core of the earth is thisw
Down
- 1. A Light coloured igneous rock with large crystals
- 3. A volcanic glass
- 4. Chemical substances that rocks are made from
- 5. A dark igneous rock with very small crystals
- 8. The outer layer of the earth
- 9. Crystals that have grown into one another
- 11. One of ther minerals that makes up Granite
- 12. Hot molten rock
- 13. A light grey igneous rock with trapped gas bubbles
- 14. The inner core of the earth is this.
- 16. A dark volcanic rock with many holes, denser than pumice
- 18. Magma that has reached the surface