Plate Tectonics

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

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