Across
- 4. Created when the ocean floor plunges into deep under-water canyons
- 6. Process where the ocean floor sinks beneath a deep-ocean trench and back into the mantle
- 7. Greek word meaning 'all lands'
- 9. waves of energy that travel through the Earth's layers, and are a result of an earthquake
- 11. Dark rock with a fine texture
- 13. Heat transfer through space
- 14. Flow that transfers heat within a liquid
- 15. Heat transfer within a material or between materials that are touching
- 16. Continually adds new material to the ocean floor
- 18. A well-tested concept that explains a wide range of observations
Down
- 1. Earth's layer of hot rock
- 2. Made mostly of metals, irons and nickel; consists of two parts-outer core and inner core
- 3. radiation, conduction and convection
- 5. Transfer by movement or fluids
- 7. Amount of force surrounding an area
- 8. Earth's soft layer below the Lithosphere
- 10. A device that bounces waves off of underwater objects
- 12. Upper layer of the mantle
- 17. Any trace of an ancient organism that has been preserved in rock
- 19. Layer of solid rock that includes both dry land and ocean floor