13. Answer the following questions.

14. When the ground shakes because rocks have moved inside Earth, it is called a(an) Earthquake

15. P - Waves S - Waves

16. Circle the letter of the kind of seismic waves that are the slowest. a. P waves b. S waves c. surface waves

18. Lesson Objective 2 Students will be able to … Identify the scales used to measure the strength of an earthquake. Lesson Objective 2 Students will be able to … Identify the scales used to measure the strength of an earthquake.

23. Answer the following questions.

24. Size of seismic waves Moment magnitude scale

25. An instrument that measures the size of seismic waves is a(an) seismograph

26. Mercalli Scale Which way of measuring earthquake strength is based on the kind of information shown in the drawing?

36. Answer the following questions.

38. Is the following sentence true or false? One seismograph can tell you exactly where the epicenter of an earthquake is False

39. Where is the epicenter?

40. Nat Geo Earthquakes