Across
- 5. The set of changes that turn one rock type into another
- 6. Any rock that has been changed by intense heat and pressure
- 8. The innermost layer of Earth, which is a solid mixture of iron and nickel at extreme pressures and temperatures.
- 9. The gluing together of sediment by new mineral crystals
- 10. The breakdown of rocks into small grains or soil through the action of chemicals, physical actions of biological factors
- 14. The thickest layer of Earth, between the core and the crust made of solid and partially melted rock
- 16. The remains or traces of an ancient organism (more than 10000 years old) preserved in rock
- 18. The rigid outer part of Earth, made of the crust and upper mantle which is divided into slow-moving tectonic plates.
- 20. A release of magma at the Earth's surface
- 21. Any rock formed by the cooling of magma or lava
- 23. The squeezing of sediment by the weight of overlying layers
- 24. Hot liquid rock located above the Earth's surface
- 25. method to determine if one rock layer is older or younger than another layer
- 26. A section of the crust and upper mantle
- 27. A scientist who studies the Earth
Down
- 1. The layer of Earth that lies between the mantle and inner core which is a liquid mixture of iron and nickel
- 2. Any rock formed when sediment is compacted or cemented
- 3. A change of state from solid to liquid
- 4. Crust that lies beneath an ocean
- 7. The amount of force applied over a certain area
- 9. Crust that lies beneath a continent
- 11. outermost layer of Earth made of solid rock and is 5–70 km thick
- 12. The wearing away and removal of rock
- 13. Hot liquid rock located below the Earth's surface
- 15. Natural substances which are the building blocks of rocks.
- 17. Small rock fragments such as mud, sand or gravel which form when rock is exposed to weathering and erosion.
- 19. A change of state from liquid to solid
- 22. The original rock from which a metamorphic rock formed