1. 2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt

2. What percent of the Earth does the mantle take up?

3. 80%

4. What elements are in the Earth’s inner core?

5. Iron and Nickel

6. How do tectonic plates move?

7. Float on top of the asthenosphere due to convection currents in the mantle

8. What happens at a subduction zone?

9. More dense oceanic plate dives beneath less dense continental plate

10. What do plates do at a transform boundary?

11. Slide past each other

12. How often do the Earth’s magnetic poles reverse?

13. Every 200,000 years

14. Energy travels in earthquakes as ________ _______

15. Seismic waves

16. Is a longitudinal wave a P wave or an S wave?

17. P wave

18. What type of wave can not travel through liquids?

19. Transverse or S waves

20. What does a seismograph measure?

21. Location of the epicenter of an earthquake

22. What does the Richter scale measure?

23. The amount of energy that an earthquake releases

24. What is seismology?

25. The study of earthquakes

26. What type of volcanoes have only violent explosions?

27. Cinder Cone

28. What is the Ring of Fire?

29. An area in the Pacific Ocean with frequent earthquake and volcanic activity

30. What are records of seismic activity called?

31. Seismograms

32. What type of fault is found at a transform boundary?

33. Strike-slip

34. What type of volcano is the steepest?

35. Composite

36. What type of volcano has only mild eruptions?

37. Sheild

38. Which layer of the Earth is the most dense?

39. The core

40. What scientist proposed the theory of continental drift?

41. Alfred Wegner

42. What layer of the Earth is the thinnest?

43. Crust

44. An earthquake starts at the ______ beneath the Earth’s surface.

45. Focus

46. Does an earthquake with a shallow focus or one with a deeper focus cause the most damage? Explain.

47. Shallow, the Earth absorbs some of the energy

48. What is the asthenosphere?

49. Liquid portion of the mantle