Across
- 1. the centre of the Earth.
- 2. the second layer of the Earth.
- 4. a sedimentary rock that is able to float in water.
- 5. a rock formed by lava or magma.
- 7. a metamorphic rock
- 10. a rock formed by eroded and weathered sediments.
- 12. molten rock beneath the Earth's surface.
- 13. a person that studies in the field of goelogy.
- 15. the study of rocks.
- 16. magma that is above the Earth's surface.
- 17. the process of rocks being broken into sediments.
- 18. a glossy black smooth igneous rock.
Down
- 1. the surface layer of the Earth.
- 3. the act of finding minerals.
- 6. the act of using layers of multiple sites to determine the age of the layer.
- 8. the process of rocks travelling to another destination.
- 9. a rock formed by extreme pressures or/and high temperatures.
- 11. may be present in some sedimentary rocks.
- 14. present in all igneous rocks.