1. Earth layers and seismic waves
Practice Quiz

2. The earth’s interior
1. The only true liquid layer of our Earth is the _____________ __________ .
2. The _______________ is the least dense layer of Earth.
3. The ___________ _________ is the most dense.

3. The earth’s interior
4. The _____________ contains the asthenosphere (a plastic-like layer).
5. The ___________ _________ is made of basalt rock.
6. The ___________ _________ is made of granite rock.

4. The earth’s interior
7. _____________ and temperature increase as you travel from the outside of Earth to the inner core.
8. The _____________ is made up of the crust and upper mantle (100 km deep).
9. The ___________ contains both the lithosphere and the asthenosphere.

5. An Earthquake begins at the…
10.________: The point beneath Earths surface where rock that is under stress breaks. 11.________: The point on the surface of the Earth directly above the focus. 2 2 1

6. Earthquakes
12.________ _____: Vibrations that carry energy released from an earthquake. 13._____________: The instrument used to record seismic activity. 14. _____________ : The paper record of the seismic waves. 1

7. Which wave is which? P, s, or surface?
15. the fastest?
16. stops at the liquid outer core?
17. only travels through the crust?
18. slows down and bends when it hits the liquid outer core?
19. slowest?
20. most destructive?

8. Eqs from the interior (On the surface) 24 25 (Below the surface) 22
(Black Lines) 23
(Yellow Lines) 21 21

9. Key Outer Core Crust Inner Core Mantle Oceanic Crust Continental Crust
Density/Pressure
Lithosphere
Focus
Epicenter
Seismic Waves
Seismograph
Seismogram
Primary Wave
Secondary Wave
Surface Wave
Shadow Zones
Secondary Waves
Primary Waves
Epicenter/Surface Waves
Focus