Inside Earth (pp. 54 – 61)

Section 2.1

Definitions

Earthquake

Stress

Shearing

Tension

Compression

Deformation

Inside Earth (pp. 54 – 61)

Section 2.1

Definitions:

Fault

Fold

Anticline

Syncline

Plateau

A

B

C

Inside Earth (pp. 54 – 61)

Section 2.1

Matching (there can be more than one answer)

1. ______________ This fault is the result of compression.

2. _______________ This fault is the result of shearing

3. ________________This fault is the result of tension.

4. _______________ This fault occurs when there is little up or down motion.

5. _______________ This fault has a hanging wall and a foot wall.

6. _______________ This fault occurs when two plates move toward each other.

7. _______________ This fault occurs when two plates move away from each other.

8. _______________ This fault occurs when two plates move in opposite directions.

D

A

C

Inside Earth (pp. 54 – 61)

Section 2.1

Match each of the following pictures to the description. A, B, and C photographs are taken from a distance. D and E are photographs taken very close up to the object.

1. Two rocks are moving past each other in a strike slip fault. You can see the lines used to be straight, but are now curved. The light, s-shaped line in the rock is divided by the fault line.

2. This is the result of a reverse fault. The gigantic rock that makes up the mountain was thrust up and over another rock.

3. This rock was under enormous pressure from compression. The rock did not break, but you can see how the rock bent by observing the squiggly lines.

4. Folding created this hill. It is an upward arch called a syncline.

5. These mountains were created by a normal fault. As the rocks moved away from each other, a center piece “fell” downward. They kind of look like dominoes.

E

B

Inside Earth (pp. 64 – 69)

Section 2.2

Definitions

Focus

Epicenter

Seismic wave

P wave

S Wave

Surface waves

Seismic waves

Magnitude

Inside Earth (pp. 64 – 69)

Section 2.2

Mercali scale

Richter scale

Moment magnitude scale

Fill in the blank.

1. Every day there are about ________________________ earthquakes all over the world.

2. An earthquake produces two types of waves. The _________________ wave is the first to arrive.

The ___________ wave moves side to side as well as up and down.

3. __________ waves travel through both solids and liquids.

4. __________ waves cannot move through liquids.

5. Today, the _________________________________________________ scale is the most commonly

used to report earthquake strength.

Matching: _______________ Mercali Scale a. measures ground movement

_______________ Richter Scale b. measured damage

_______________ Moment Magnitude Scale c. measures the total energy released

Answer USING COMPLETE SENTENCES. Use the back if you need more room.* Why did scientists stop using the Richter scale and adopt the moment magnitude scale?

Inside Earth (pp. 72 – 77)Section 2.3

Definitions

Liquefaction

Aftershock

tsunami

Answer the following discussion questions USING COMPLETE SENTENCES.

* List four things that can be done to make a home safer in an earthquake.

* Describe safety measures you should take to protect yourself in an earthquake.

Inside Earth (pp. 78 – 85)

Section 2.4

Fill in the blank

1. Scientists measure _______________________________________ along a fault in order to try to understand earthquakes.

2. Earthquakes almost always strike ______________________________________________________.

Discussion

1. Name and describe 3 meters that measure fault movement.

2. How do scientists use satellites to collect data on earthquake faults?