Across
- 1. the material that forms earths hard surface
- 4. core is a dense ball of solid metal
- 10. a measure of how much mass there is in a volume of substance
- 12. 7 great landmasses surrounded by water
- 13. forces shape the surface by building up mountains and landmasses
- 16. forces those that slowly wear away mountains and, eventually, every other feature on the surface
- 17. uppermost part of the mantle and the crust together
- 18. scientists who study the forces that make and shape planet earth
- 19. rock that has larger crystals than basalt and is not as dense
Down
- 2. heat transfer by direct contact of particles of matter
- 3. transfer the movement of energy from a warmer object to a cool object
- 5. waves an elastic wave in the earth produced by an earthquake or other means
- 6. soft layer
- 7. a layer of hot rock
- 8. a layer of rock that forms earth's outer skin
- 9. core a layer of molten metal that surrounds the inner core
- 11. is dark, dense rock with a fine texture
- 14. the transfer of energy through empty space
- 15. the study of planet earth