Final Exam Section 2

2. Most common element in the atmosphere.
6. The strength of a wave.
7. The amount of vibrations in a wave per second.
10. Huge chunks of Earth crust that explain how the continents actually move.
14. Scale used to measure earthquake intensity.
18. A convergent tectonic boundary where one layer goes under the other (makes volcanos).
19. Second most common element in the atmosphere.
20. Deformation that bends but bounces back.
24. Layer of the atmosphere with aurora.
26. The second waves in an earthquake, they are transverse.
28. Waves that move at right angles to the direction they vibrate.

1. The idea that the continents are "floating" and moving around.
3. Deformation that bends and stays bent.
4. The north pole that compasses point at.
5. Waves that vibrate the same direction they move.
8. The first waves in an earthquake, they are longitudinal.
9. This state of matter is the fastest medium for sound waves.
11. Measure of force of air.
12. Second atmosphere layer, it contains ozone.
13. The matter a wave goes through.
15. measure of water in the air
16. A tectonic boundary where plates spread apart (makes new sea floor).
17. Outer most layer of the atmosphere.
21. Measure of particle vibrations.
22. Middle layer of the atmosphere where most meteors burn up.
23. Layer of atmosphere with weather and people.
25. A tectonic boundary where plates slide next to each other (cause earthquakes).
27. The last and most damaging waves in an earthquake.