Across
- 5. this describes how reflective a rock is
- 6. rocks are made up of these
- 10. this is how rocks are broken down is size
- 12. the layer of the earth on which we live
- 13. you get these when you scratch a rock sample on a unglazed tile
- 15. a physical quantity that expresses hot and cold
- 16. a word that describes how hard something is
- 18. you need intense heat and pressure to form this type of rock
- 20. glassy volcanic rock
- 24. a course grain igneous rock
- 26. the second layer from the centre of the earth
- 27. molten rock that is still underground
Down
- 1. you are most likely to find fossils in this type of rock
- 2. extrusive igneous rock has small one of these
- 3. a type of rock used to make buildings and sculptures
- 4. the rock formed by the solidification of lava
- 7. The Rock __________
- 8. like metal
- 9. the planet on which we live
- 11. the very centre of the earth
- 13. the building blocks of sedimentary rock
- 14. the process by which sediment is moved
- 17. to change into another form
- 19. a force that increases as you go deeper underground
- 21. the layer of the earth just below the crust
- 22. a word used to describe how big something is
- 23. has a mohs hardness scale of 7
- 24. the science of studying the earth
- 25. molten rock