Across
- 4. the rigid outer layer of Earth made of crust and upper mantle
- 6. a huge landmass made of all continents joined together
- 8. a large ocean wave usually caused by an underwater earthquake
- 11. molten rock that has erupted onto Earth’s surface
- 13. wave energy waves that travel through Earth during an earthquake
- 15. core the liquid layer around the inner core made mostly of metal
- 16. plate a large moving piece of Earth’s surface
- 18. molten rock found beneath Earth’s surface
- 19. the study of rocks, Earth, and how it changes
Down
- 1. the breaking down of rocks by wind, water, or temperature
- 2. rock the original rock that soil or other rocks form from
- 3. the process where minerals form solid crystals as they cool
- 5. preserved remains or traces of ancient plants or animals in rock
- 7. movement of heat in a liquid or gas that causes currents
- 9. sudden shaking of the ground caused by plate movement
- 10. the point on Earth’s surface directly above where an earthquake starts
- 12. an opening in Earth where lava, ash, and gases escape
- 14. the thin outer layer of Earth where we live
- 17. core the solid, hottest part at the very centre of Earth