Across
- 1. Thin outermost layer of earth. Made up mainly of granite and basalt.
- 3. A dense sphere of solid iron and nickel at the center of the earth and has the highest temperature and most pressure.
- 7. Current in Earth's mantle that transforms heat in Earth's interior and is the driving force for plate tectonics
- 9. a process which more dense materials of a planet sink to the center, while less dense materials stay on the surface
Down
- 1. the makeup of something
- 2. a layer of molten nickle and iron the surrounds the inner core
- 4. How tightly packed the matter in a substance is
- 5. the rigid outer part of the earth, consisting of the crust and upper mantle.
- 6. Earth's thickest layer made of hot rock and is less dense than the core, less hot, and has less pressure on it.
- 8. The amount of matter in an object