Across
- 2. core, made of SOLID iron and nickel
- 5. hot molten rock inside the Earth
- 7. colour of the powdered or crushed mineral
- 10. made from cooling of lava
- 11. studies rocks
- 12. a basalt with holes
- 13. magma on the surface of the Earth
- 14. glass like rock, used to make surgical blades
- 15. used for industrial extraction of metals
Down
- 1. outermost layer of the earth
- 3. small pieces that reflect light in rocks
- 4. Mohs scale is a measure of this property of rocks
- 5. earth's solid layer which FLOWS
- 6. type of igneous rock with large crystals
- 8. contains metals
- 9. used for removing dead skin
- 14. core, made of LIQUID iron and nickel