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