Across
- 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
Down
- 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