Unit 2.2 Vocabulary

6. a big ball of granite from the earliest crust.
7. core a hot, dense ball of (mostly) iron
9. Theory states that the sun and planets formed from a rotation disk of dust and gases.
11. core the third layer of the Earth., it is the only liquid layer and is mainly made up of the metals iron and nickel.
12. The creation of layers into distinct zones
13. The amount of space an object takes up in relation to the mass of the object
15. Meterorids that enter Earth's atmosphere and burn up
16. Known as pressure wave, moves through sold and liquid.
17. All water on Earth
18. crust The part of the Earth's crust that makes up the seafloor
22. object Are found outside of the Earth's atmosphere
23. A meteoroid that actually reaches Earth's surface
24. The gaseous portion of a planet

1. Small rock bodies that orbit the sun and are larger than 10 meters in diameter
2. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
3. the rigid outer part of the earth, consisting of the crust and upper mantle.
4. elastic wave or the vibration experienced during an earthquake.
5. crust The outermost layer of Earth's lithosphere that makes up the planet's continents and continental shelves
8. These were huge masses of land that look much different than what our continents look like today.(Pangea)
10. The releasing of gas from a volcanic eruption
14. mantle hotter and denser than the upper mantle and transition zone.
15. A small particle that travels through space
19. Pieces of rocky and metallic materials held together by frozen water
20. mantle It is mostly solid with some softer areas that play a role in plate tectonics
21. Anything from the surface of the Earth to the core