chapter 25

Question 1

Hess discovered a system of mountain ranges on the seafloor separated by valleys.

Answer 1

mid-ocean ridge

Question 2

forms in between peaks along the mid-ocean ridges

Answer 2

rift valley

Question 3

boundary where two plates collide

Answer 3

convergent plate boundary

Question 4

When a thick and bouynat continetal plate meets thin and dense oceanic plate,denser plate dives beneath the contiment in a process

Answer 4

subduction

Question 5

boundary between two plates that are moving apart

Answer 5

divergent plate boundary

Question 6

plate sides horizontally past each other in opposite directions

Answer 6

transform plate boundary

Question 7

sudden movement or vibration of the ground

Answer 7

earthquake

Question 8

crack in Earth’s crust along which rocks moved

Answer 8

fault

Question 9

sudden release of strain energy as rocks moves along a fault

Answer 9

elastic rebound

Question 10

point of origin for an earthquake

Answer 10

focus

Question 11

point on Earth’s surface directly above focus

Answer 11

epicenter

Question 12

Who came up with continental drift hypothesis?

Answer 12

Alfred Wegener

Question 13

What were some pieces of evidence that support the hypothesis?

Answer 13

Large land animal fossils
coast lines matched up
mountain ranges matched up had the same rock compision and rock age

Question 14

What was the name of the super continent?

Answer 14

pangea

Question 15

who came up with the seafloor spreading hypothesis?

Answer 15

Harry Hess

Question 16

What did Hess uses to help him create a map of the seafloor?

Answer 16

Sonor

Question 17

How discovered the mid-ocean range?

Answer 17

Harry Hess

Question 18

Where will you find younger rock?

Answer 18

It was closer to the M.O.R or near the M.O.R

Question 19

What are the three types of plate boundaries?

Answer 19

divergent boundary
Convergent boundary
Transform boundary

Question 20

Subduction only happens with whch type of plate number

Answer 20

convergent

Question 21

move toward one point or approach each other

Answer 21

convergent

Question 22

What are the two type of crust are involved in plate

Answer 22

oceanic crust

conitinental crust

Question 23

What lands from when oceanic crust and contintemtal convert

Question 24

What land forms can be formed when two oceanic crust collide?

Answer 24

hot spots=they create islands

Question 25

What land form is created when two contentinental collide?

Answer 25

mountains

Question 26

What type of crust must be presented from volcanoes activty to occur?

Answer 26

oceanic crust

Question 27

How do divergent boundaries move?

Answer 27

they move away from each other

Question 28

What are two examples of divergent plate boundaries?

Answer 28

M.O.R (made up with oceanic crust) | East African Rift (made up with two contentinental crust)

Question 29

How do convection crust

Answer 29

magma hits up, becomes less dense then rises

Question 30

What continental crust or involved with transform plate boudry

Question 31

What other forces that help with plate motion

Answer 31

slab pull,ridge push,and friction

Question 32

What two types of boundaries have shallow earthquakes?

Answer 32

Divergent and transform

Question 33

Which type of boundary has deep earthquakes?

Answer 33

Convergent

Question 34

What are the types of stress can be put on rocks?

Answer 34

compression stress tension stress shear stress torsion stress

Question 35

What are the two types of deformation?

Answer 35

Elastic Deformation | Plastic Deformation

Question 36

What happens to a rock during plastic deformation?

Answer 36

it stays deformed

Question 37

What are the kind of seismic waves?

Answer 37

primary secondary surface

Question 38

What type of seismic waves moves the fastest?

Answer 38

primary

Question 39

How do primary waves move?

Question 40

What type of materials do waves move in?

Answer 40

solids and liquids

Question 41

How do secoundary waves move?

Question 42

What type of material do secondary waves move?

Answer 42

trans verse waves

Question 43

what type of waves most complex and causes the most damage?

Answer 43

surface waves

Question 44

What are the two scales that are measured earthquakes?

Answer 44

Richter scale | mercali scale

Question 45

What does the Richter scale tell us about an earthquake?

Answer 45

amount of energy released

Question 46

What amount of damaged was done

Answer 46

amount of damaged done