Across
- 1. a section of the lithosphere that slowly moves
- 5. a layer of molten iron and nickle in the earth
- 6. the amount of mass in a given space; mass per unit volume
- 8. a rigid layer made of the uppermost layer of the mantle
- 10. the soft layer of the mantle on which the lithosphere floats
- 13. a dense sphere of solid iron and nickel
- 15. a trace of an ancient organism that has been preserved in rock
- 19. the transfer of heat through empty space
Down
- 1. the amount of force pushing on a surface or area
- 2. the study of the planet earth
- 3. the super continent
- 4. the transfer of heat through a warmer object to a cooler object
- 7. great land masses
- 9. the transfer of heat by contact of particles of matter
- 11. the process by which denser crust slides under each other
- 12. a scientist who studies the forces of earth
- 14. the transfer of heat by movements of a heated fluid
- 16. a device that determines the distance of an object underwater
- 17. layer of rock that forms outer surface
- 18. the layer of the earth made of hot, solid material between earth's crust and core