1. Can animals sense earthquakes ‘before’ they happen?

2. Richter Scale

3. Which is the largest? Fredericton, NB. 2009 Magnitude 3.6
Vancouver Island, Magnitude 5.1
Sumatra (Indonesia), Magnitude 9.0
Ontario, Magnitude 4.1

4. Seismograms, epicenters, earthquakes!
Finish seismogram worksheet…in the next 10 minutes
You need a pencil
If you are finished:
*Raise hand, I’ll come over to check your work
*Turn on your net book *
- Lesson 13 in the menu
OR sign in to YOUR wikispace and work on your WORD WALL.
Seismogram, seismologist, seismograph, epicenter, focus, and fault should all be defined in your word wall 

5. Trailer

6. Look at your apple piece…
Label the ‘parts’ of the apple with these terms:
Try your best
You don’t have to write
on your apple, visualize
inner core
mantle
Crust
outer core

7. How did you arrange your apple piece?
Crust?
Mantle?
Outer core?
Inner core?

8. The apple piece represents the inner layers of Earth

9. 1st Layer : CRUST Description: Thin, Outermost layer
Thickness (KM): 5 – 35 KM
Very thin, compared to an apple, the crust is the apple’s skin.

10. 2nd Layer: Mantle
Description: about 84% of earth’s volume is mantle rock, the upper part is rock the lower part is soft like taffy. This moves earth plates.
Thickness: 3 560KM
Temperature: 4000oC

11. 3rd Layer: Outer Core
Description: Liquid layer, its motion creates earth’s magnetic field. Made from iron/nickel metals.
Thickness: KM
Temperature: 5500oC

12. 4th Layer: Inner Core Description: Solid iron/nickel, intense pressure
Thickness: 1 216km
Temperature: 6000oC

13. Knowing what you do about the layers of the earth…
In your large group:
Arrange yourselves to demonstrate layers of the earth (only the radius: core  crust)
Every student should be included
The layers should represent ‘real life’, as in, they should be to scale
Ex: 1 student = crust
1 student = mantle
6 students = outer core
1 student = inner core
Total mantle = 84% of volume
Total Core = 15% of volume
These numbers of students representing each layer is not ‘to scale’. See if you can do better!

14. Click to find the answer
How do we know all of this about the inside of the Earth if we’ve never been there?
Click to find the answer
Another website to demonstrate seismic wave movement
Why is the spinning Earth’s core so important to us?
Click here to explore this question

15. Bonus Question: How do the s-waves produced from explosives tell us what’s inside the volcano?

16. Listen to earthquakes!