1. Semester 1 Review Jeopardy Rock Record Earth’s Past Plate Techs Earthquake Volcano 100 200 300 400 500

2. Which law tells us that a fault or igneous intrusion is always younger than the rock layers it cuts through? Answer

3. The Law of Crosscutting Relationships Home

4. Answer Evidence that an animal was once in a place like footprints or burrows?

5. Home Trace Fossils

6. Break in the geologic record? Answer

7. Unconformity Home

8. The number of half-lives gone through when a parent isotope is ¼ of it’s original amount? Answer

9. 2 Home

10. Which law tells us that all rocks beneath an unconformity are older than rocks above the unconformity? Answer

11. Law of Superposition Home

12. In radiometric dating, what is the original material called? (the radioactive material) Answer

13. Home Parent isotope

14. The Impact Hypothesis says dinosaurs became extinct when… Answer

15. An asteroid crashed into the Earth Home

16. The super continent that formed about 300 million years ago. Answer

17. Pangea Home

18. An occurrence where many species die out? Answer

19. Mass extinction Home

20. A geologic period is usually named for? Answer

21. Home. The place where characteristic fossils were first discovered.

22. Gradual development of new organisms from pre-existing ones? Answer

23. Evolution Home

24. Answer These are the longest units of geologic time?

25. Home Eons

26. Plates that slide past each other in opposite directions? Answer

27. Transform Home

28. One way that plate movement affects climate? Answer

29. Creating mountains that affect wind patterns. Home

30. Most scientists agree that the Earth is about how hold? Answer

31. 4.6 Billion Years ago Home

32. Answer Slowest moving seismic waves?

33. Surface waves Home

34. Why earthquakes usually occur at plate boundaries? Answer

35. Great stress Home

36. How the intensity of XII is described? Answer

37. Total destruction Home

38. Area on Earth’s surface where no direct seismic waves can be detected? Answer

39. Home Shadow zone

40. Answer Tracing of earthquake motion that depends on a seismograph.

41. Seismogram Home

42. Liquid rock underground? Answer

43. Magma Home

44. A large pluton? Answer

45. Batholith Home

46. The majority of earthquakes and volcanoes happens here? Answer

47. Pacific Ring of Fire Home

48. Iceland lies along this? Answer

49. Mid-Atlantic Ridge Home

50. Hawaiian Island formed due to this? Answer

51. Hot Spot Home