ch25

Question 1

a system of mountain ranges on the sea floor separated by valleys

Answer 1

mid-ocean range

Question 2

a long narrow depression

Answer 2

rift valley

Question 3

The boundary where two plates collide

Answer 3

convergent plate boundary

Question 4

when a thick buoyant plate pushes a thin dense plate under itself

Answer 4

subduction

Question 5

When the boundary of two plates that are moving apart

Answer 5

divergent plate boundary

Question 6

plates slide horizontally passed each other

Answer 6

transform plate boundary

Question 7

a sudden movement or vibration of the ground that occurs when rocks slip and slide along enormous cracks in the Earths crust called faults

Answer 7

earthquake

Question 8

a crack in the Earths crust along which rock has moved

Answer 8

fault

Question 9

A sudden release of energy as rock moves along a fault .Produces energy called seismic waves that travel in the Earth

Answer 9

elastic rebound

Question 10

The origin of an Earthquake

Answer 10

focus

Question 11

The point directly above the focus

Answer 11

epicenter

Question 12

Who came up with the continental drift hypothesis

Answer 12

Alfred Wegener

Question 13

What is the evidence for the continental drift hypothesis

Answer 13

The continents match up like a puzzle

Match rocks and fossils

Similar mountains and formations

Question 14

what was the super continent called

Answer 14

Pangaea

Question 15

Who came up with the seafloor spreading hypothesis

Answer 15

Harry Hess

Question 16

How did Harry Hess discover the Seafloor spreading Hypothesis

Answer 16

Sonar

Question 17

What did Harry Hess discover using sonar

Answer 17

MOR

Question 18

On the Ocean Floor where is the Newest Rock

Answer 18

Closer to the MOR

Question 19

What are the types of plate boundaries

Answer 19

Divergent
Convergent
Transform

Question 20

how do convergent plate boundaries move

Answer 20

They collide

Question 21

What type of boundary does subduction happen

Answer 21

Convergent

Question 22

What are the two types of crust

Answer 22

Oceanic

continental

Question 23

What Type of crust has to be present for volcanic activity to occur

Answer 23

Oceanic

Question 24

If two continental crust collide what happens

Answer 24

mountains

Question 25

If an oceanic continental crusts collide what happens

Answer 25

Deep sea trench and volcanoes

Question 26

If two oceanic plates collide what happens

Answer 26

Volcanic islands

Question 27

how do divergent plate boundaries move

Answer 27

They pull away from each other

Question 28

What is a divergent plate example

Answer 28

The MOR is one example only oceanic

Question 29

How do transform plate boundaries move

Answer 29

They slide passed eachother

Question 30

What is the only transform plate boundary

Answer 30

San Andreas Fault

Question 31

What plates can be transform boundaries

Answer 31

Two continental

Question 32

What is an Earthquake

Answer 32

The sudden movement or vibration of the crust

Question 33

Which plate boundaries have shallow earthquakes

Answer 33

Divergent and transform plate boudaries

Question 34

Which plate boundaries have deep earthquakes

Answer 34

convergent plate boundaries

Question 35

What types of stress are applied to rocks that cause earthquakes

Answer 35

Compression tension shear torsion

Question 36

What are the types of deformation

Answer 36

Elastic | plastic

Question 37

What happens in elastic deformation

Answer 37

Deforms as stress is applied but returns to original shape after stress is gone

Question 38

What happens when plastic deformation happens

Answer 38

Deforms when stress applied and stays deformed

Question 39

How many types of seismic waves are there?

Answer 39

There are 3

Question 40

What are the types of seismic waves

Answer 40

1. Primary 2. secondary 3. surface

Question 41

what are the 2 body waves

Answer 41

Primary waves | secondary waves

Question 42

what type of wave is a primary wave

Answer 42

compression

Question 43

What body wave moves the fastest

Answer 43

Primary waves

Question 44

What type of materials do p waves go through

Answer 44

solid and liquid

Question 45

what kind of material does s waves travel through

Answer 45

solids

Question 46

what types of waves do the most damage

Answer 46

surface waves

Question 47

what are the two scales that measure earthquakes

Answer 47

Richter | and Mercalli

Question 48

What does the Richter scale measure

Answer 48

The amount of energy released

Question 49

what does the mercalli scale measure

Answer 49

Damage