1. Warm Up! What instrument do scientists use to measure an earthquake?
What causes an earthquake?
What is an aftershock?
Explain the difference between the lithosphere and the asthenosphere.
Label the fault, epicenter, and focus in the picture to the right.
A =
B =
C =
*Chunk, color, and write a
Summary from yesterday’s
Notes!*
Warm Up! b a c
Objective: SWBAT explain how the release of energy and various types of earthquakes relates to magnitude, and P and S waves.
LEQ: Why is it important to understand the different aspects of an earthquake?

2. Objective & LEQ
Objective: SWBAT explain how the release of energy and various types of earthquakes relates to magnitude, and P and S waves.
LEQ: Why is it important to understand the different aspects of an earthquake?

3. Agenda Warm Up Review Big Goals Getting Organized
Review Yesterday’s Exit Ticket
Earthquake Waves CN
Name that Wave!!
Wave Scenarios- Practice Problems
Waves Mission Mastery
Exit ticket

4. Unit 3: Table of Contents (1st & 3rd)
Left Side Items
Page
Right Side Items
Convection Article 20
Layers of Earth/Convection Currents CN 21
Layers of Earth Foldable
Plate Tectonics CN 23
Graham Cracker Lab 22
Volcano CN 25
Plate Boundaries Card Sort
Earthquake Anatomy CN 27
Volcano Stations 24
Earthquake Waves CN 29
Volcano Worksheet
Unit 3 Review CN 31
Earthquake Presentation 26
Waves Mission Mastery 28
Unit 3 Study Guide 30

5. Unit 3: GEMS of Wisdom (1st & 3rd)
Avid Strategy
Page W I C O R
Convection Article 22
Layers of the Earth Foldable
Graham Cracker Lab 24
Plate Boundaries Card Sort
Volcano Stations 26
Volcano Worksheet
Earthquake Presentation 28
Waves Mission Mastery 30
Unit 3 Study Guide 32

6. Unit 3: Table of Contents (2nd)
Left Side Items
Page
Right Side Items
Convection Article 22
Layers of Earth/Convection Currents CN 23
Layers of Earth Foldable
Plate Tectonics CN 25
Graham Cracker Lab 24
Volcano CN 27
Plate Boundaries Card Sort
Earthquake Anatomy CN 29
Volcano Stations 26
Earthquake Waves CN 31
Volcano Worksheet
Unit 3 Review CN 33
Earthquake Presentation 28
Waves Mission Mastery 30
Jeopardy 32
Unit 3 Study Guide

7. Unit 3: GEMS of Wisdom (2nd)
Avid Strategy
Page W I C O R
Convection Article 22
Layers of the Earth Foldable
Graham Cracker Lab 24
Plate Boundaries Card Sort
Volcano Stations 26
Volcano Worksheet
Earthquake Presentation 28
Waves Mission Mastery 30

8. *How do we envision ourselves?
OUR BIG GOALS
What are our BIG GOALS?
What behaviors and actions will allow us to reach our BIG GOALS?
What do we think will be most difficult?
PROVE WHAT IS POSSIBLE!
*How do we envision ourselves?

9. Exit Ticket-Tuesday List and describe the 3 types of volcanoes.
What three factors affect the viscosity of lava/magma?
What hypothesis explains how earthquakes occur?
Define the 3 parts of an earthquake (fault, epicenter, focus)

10. It’s a race…

11. P WAVES (Primary Waves)
Compression waves.
They push and pull (compress & expand) in the direction that the wave is traveling.
Fastest waves! They arrive first, but cause the least damage.

12. 12

13. S WAVES (Secondary Waves)
Move in right angles
Slower than P waves.
Arrive second (hence the name)
cause a moderate amount of damage.

14. 14

15. SURFACE WAVES
Travel along the earth’s surface. They do not travel through the Earth.
Move up and down or side to side.
Slowest wave, but most destructive!

16. LETS SEE THIS IN ACTION!

17. NAME
THAT
WAVE

18. P Wave, S Wave, or Surface Wave
NAME THAT WAVE!
I am the type of wave that does not travel through the earth.
P Wave, S Wave, or Surface Wave 18

19. NAME THAT WAVE! 2) 19

20. 3) I am short for “secondary wave.”
NAME THAT WAVE!
3) I am short for “secondary wave.” 20

21. NAME THAT WAVE! 4) 21

22. 5) I arrive last at the seismograph station.
NAME THAT WAVE!
5) I arrive last at the seismograph station. 22

23. NAME THAT WAVE! 6) 23

24. 7) I am the most destructive type of wave.
NAME THAT WAVE!
7) I am the most destructive type of wave. 24

25. NAME THAT WAVE! 8) 25

26. 9) I am the type of wave that arrives at a seismograph first.
NAME THAT WAVE!
9) I am the type of wave that arrives at a seismograph first. 26

27. WHAT THIS LOOKS LIKE IN REAL LIFE
Let’s label the boxes as a class.
Draw them on your cornell notes!!

28. When an earthquake happens, scientists want to know where it happens.
Scientists need to find the epicenter. Scientists need to find the source.
Write the formula below!!
Epicenter = Difference in __________
S wave - P wave

29. HOW SCIENTISTS USE THIS
*Write the formula and answer for each scenario!!*
SCENARIO 1: Watch!
Answer 1 _____________________
SCENARIO 2: A P Wave arrives at the seismograph station 3 minutes after an earthquake. An S Wave arrives 8 minutes after an earthquake. What is the difference in arrival time?
Answer 2 ______________________
SCENARIO 3: At 10:32 a P Wave arrives. At 10:45 and S Wave arrives. What is the difference in arrival time?
Answer 3 _______________________

30. P Wave = _____________________ S Wave = _____________________
3:00 3:02 3:04 3: :08 3:10 3:12 3:14 3:16
SCENARIO 1: Watch!
P Wave = _____________________
S Wave = _____________________
Answer = ______________________
SCENARIO 2:
P Wave = _____________________
S Wave = _____________________
Answer = ______________________

31. SCENARIO #1
Determine the difference in the travel-times between the first P wave and the first S wave, if the seismic station is 1000 miles from the epicenter.
Read the problem and box in key words.
Identify the information on the axis.
Plot your points to find data. ________________________
Subtract your data.
__________ - __________ = _________

32. SCENARIO #2
Determine the difference in the travel-times between the first P wave and the first S wave, if the seismic station is 500 miles from the epicenter.
Read the problem and box in key words.
Identify the information on the axis.
Plot your points to find data. ________________________
Subtract your data.
__________ - __________ = _________

33. SCENARIO #3
Determine the difference in the travel-times between the first P wave and the first S wave, if the seismic station is 2,000 miles from the epicenter.
Read the problem and box in key words.
Identify the information on the axis.
Plot your points to find data. ________________________
Subtract your data.
__________ - __________ = _________

34. SCENARIO #1
According to Figure 8-1, what is the distance between the seismic station and an earthquake epicenter, if the first S wave arrives 6.5 minutes after the first P wave?
Read the problem and box in key words.
Count the intervals between the lines.
When you have found one close to your boxed in words, plot your points to find data.
Subtract your data.
__________ - __________ = _________

35. SCENARIO #2
According to Figure 8-1, what is the distance between the seismic station and an earthquake epicenter, if the first S wave arrives 2.0 minutes after the first P wave?
Read the problem and box in key words.
Count the intervals between the lines.
When you have found one close to your boxed in words, plot your points to find data.
Subtract your data.
__________ - __________ = _________

36. SCENARIO #3
According to Figure 8-1, what is the distance between the seismic station and an earthquake epicenter, if the first S wave arrives 4.0 minutes after the first P wave?
Read the problem and box in key words.
Count the intervals between the lines.
When you have found one close to your boxed in words, plot your points to find data.
Subtract your data.
__________ - __________ = _________

37. OPPERATION: Mastery In partners you will each get a secret assignment.
On scratch paper you must solve the problem.
When you are completed you may walk briskly to the front and line up to show your work. 37

38. OPPERATION: Mastery
If you fail your mission (are wrong), I will keep your paper and you must start over.
If you succeed, you will earn 40 dollars for being the first to complete the problem.
You will earn 30 dollars for second place.
You will earn 20 dollars for third place.
You will earn 10 dollars for completing the problem. 38

39. 1. Which part of a seismogram is used to find the distance to the epicenter of the earthquake?
P-wave arrival time, only
S-wave arrival time, only
Difference in the arrival time of the P-wave and S-wave
Difference in the height of the P-wave and S-wave
2. How do the travel times of P waves and S waves compare?
P waves travel faster
S waves travel faster
The both travel at the same speed
It depends on how far they travel
3. This type of wave is the most destructive wave. Arriving last, this wave causes the most damage to buildings, roads and other structures on the Earth’s surface.
P Wave
S Wave
Surface Wave
Seismic Wave

40. 4. According to Figure 8-1, what is the distance between the seismic station and an earthquake epicenter, if the first S wave arrives 4.0 minutes after the first P wave?
a.1500 miles
b miles
c miles
d miles
5. Use the graph in Figure 8-1 to determine the difference in the travel-times between the first P wave and the first S wave, if the seismic station is 3000 miles from the epicenter.
a minutes
b. 5.2 minutes
c. 6.6 minutes
d. 7.2 minutes