Chapter 25

Question 1

What did Hess discover and name?

Answer 1

mid-ocean ridge

Question 2

what is a long narrow depression

Answer 2

Rift Valley

Question 3

The boundary where two plated collide is called?

Answer 3

Convergent plate boundary

Question 4

A process where a denser plate dives beneath the continent is called?

Answer 4

Subduction

Question 5

The boundary between two plates that are moving apart is called?

Answer 5

Divergent plate boundary

Question 6

A type of boundary where plates slide horizontally is called?

Answer 6

Transform plate boundary

Question 7

A sudden movement or vibration of the found that occurs when rocks slip and slide along enormous cracks in the Earth’s crusts called faults

Answer 7

Earthquake

Question 8

A crack in the Earth’s crust is called?

Answer 8

Fault

Question 9

The point of origin for an earthquake is called?

Answer 9

focus

Question 10

The point on Earth’s surface directly above the focus is called?

Answer 10

Epicenter

Question 11

When a sudden release of strain energy as a rock moves along a fault is called?

Answer 11

Elastic rebound

Question 12

Who came up with the Continental Drift hypothesis?

Answer 12

Alfred Wegener

Question 13

What were some pieces of evidence to support his answer?

Answer 13

1. Coastline matched like puzzle pieces
2. He looked at large land animal fossils
3. Mountain ranges matched up and had similar age and rock types

Question 14

What was the name of the Super Continent?

Answer 14

Pangaea

Question 15

Who came up with the sea floor spreading hypothesis?

Answer 15

Harry Hess

Question 16

What did he use to come up with the sea floor spreading?

Answer 16

Sonar

Question 17

Who discovered the mid-ocean ridge

Answer 17

Harry Hess

Question 18

Where can we find younger rock on the sea floor

Answer 18

Closer to the MOR

Question 19

What are the types of plate boundaries

Answer 19

1. Divergent Boundary
2. Convergent Boundary
3. Transform Boundary

Question 20

What are the types of crust?

Answer 20

1. Oceanic

2. Continental

Question 21

How do Convergent plates move?

Answer 21

Towards each other

Question 22

What land forms are created when Oceanic crusts and Continental crust converge?

Answer 22

Deep sea trench and Volcanoes

Question 23

Subduction only happens with which type of plate boundary

Answer 23

Convergent

Question 24

What type of land forms are created when two Oceanic crusts form together

Answer 24

Hotspots that create chain islands

Question 25

What type of land forms are created when two Continental crusts form together

Answer 25

Mountains

Question 26

How do divergent plates move?

Answer 26

Outwards from each other

Question 27

\What are some specific examples of a divergent plate boundary

Answer 27

1. MOR (Mid-ocean ridge)/Both are Oceanic Crust | 2. East African Rift

Question 28

How do transform plate boundaries move?

Answer 28

They slide horizontally past each other

Question 29

What is a specific example for Transform boundaries?

Answer 29

San Andreas faults (Continental Crust)

Question 30

What is a convection Current?

Answer 30

1. Magma heats up, becomes less dense, and rises | 2. Magma cools down, becomes more dense, and sinks

Question 31

What other forces that help plates in motion?

Answer 31

Slab Pull Ridge Push and Friction

Question 32

Which type of plate boundaries have Shallow earthquakes?

Answer 32

Divergent & Tranform

Question 33

Which plate boundary has deep earthquakes?

Answer 33

Convergent plate boundaries

Question 34

What are the four types of stress that can cause rocks to move?

Answer 34

Compression stress Tension stress shear stress torsion stress

Question 35

What are the types of deformation that can be caused due to stress?

Answer 35

Elastic | Plastic

Question 36

What happens to a material when elastic deformation happens?

Answer 36

Deforms and snaps back to its original shape

Question 37

What happens to a material when plastic deformation happens?

Answer 37

Deforms and remains in its new shape

Question 38

How many types of seismic waves are there?

Answer 38

Primary waves Secondary waves Surface waves

Question 39

Which wave is the fastest wave?

Answer 39

P-waves

Question 40

What type of waves is a Primary wave?

Answer 40

A compression wave

Question 41

What type of material can P-waves travel through?

Answer 41

Solids and liquids

Question 42

What type of wave are secondary waves?

Answer 42

Transverse wave

Question 43

What type of material can S-waves travel through?

Answer 43

Solids

Question 44

Which wave is more complex and causes the most damage?

Answer 44

Surface wave

Question 45

What are the two scales that help measure earthquakes?

Answer 45

Richter Magnitude scale Mercalli scale

Question 46

What does the Richter scale measure about an earthquake?

Answer 46

The amount of energy released

Question 47

What does the Mercalli scale measure?

Answer 47

The amount of damaged caused