Plate tectonics

2. current/is the flow that transfer wheat within a fluid
5. transfer of energy through space
10. spreading/the sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added
11. a measure of how much mass there is in a volume in a substance
13. any trace of an ancient organism that has been preserved in rocks
15. layer of the mantle that is soft
18. uppermost and rigid layer of the mantle
19. a rock that usually is a lights color and course grained texture
20. layer of hot rock

1. heat transfer by the movement of currents within a fluid
3. rock with a fine texture
4. from a force pressuring on an area
6. core/dense ball of solid metal
7. core/is a layer of molten metal that surrounds the inner core
8. the continents drifted together it formed a supercontinent known as
9. drift/an idea that the continents slowly moved over Earths surface
12. transfer within a material or between materials that are touching
14. wave/Scientists infer earths inner structure by studying these
16. process by which ocean floor sinks beneath a deep ocean trench and back into the mantle
17. of rock that forms Earths outer skin