CH25

Question 1

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

Answer 1

mid-ocean ridge

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 and buoyanty continental plate meets a thin and dense oceanic plate, the denser plate dices beneath the continent in a progress

Answer 4

subduction

Question 5

the boundary between two plates that are moving apart

Answer 5

divergent plate boundary

Question 6

This type of boundary where plates slide horizontally past each other in opposite direction

Answer 6

transform plate boundary

Question 7

id the sudden movement or vibration of the ground tat occurs when rocks slip and slide along enormous cracks in Earth’s crust called faults

Answer 7

earthquake

Question 8

is a crack in earth’s crust along which rock has moved

Answer 8

fault

Question 9

this sudden release of strain energy as rock moves along a fault

Answer 9

elastic rebound

Question 10

the point of origin for an earthquake

Answer 10

focus

Question 11

the point on earth’s surface directly above the focus

Answer 11

epicenter

Question 12

Who came up with the Continental Drift hypothesis

Answer 12

Alfred Wegener

Question 13

What were evidence of this theory?

Answer 13

large land fossals,mountain ranges, rock type

Question 14

What was the name of the super content

Answer 14

Pangaea

Question 15

Who came up with the Seafloor spreading Hypothesis

Answer 15

Harry Hess

Question 16

How did he discover sea floor spreading

Answer 16

sonar

Question 17

What is the Mid-ocean ridge

Answer 17

A continuous mountain range

Question 18

What are the types of plate boundary’s

Answer 18

Divergent boundary, convergent boundary, transform boundary

Question 19

How do convergent boundaries move

Answer 19

They collide

Question 20

Sub-diction zones occur with witch type of plate boundary

Answer 20

convergent

Question 21

what are 2 types crust that are used for plate boundary’s

Answer 21

Oceanic crust and continental

Question 22

what types land forms can be created when two oceanic

Answer 22

Deep sea trench,hot spots

Question 23

what happens when two oceanic amearge

Answer 23

mountains

Question 24

How do divergent plates move

Answer 24

They move away from each other

Question 25

what are some example of divergent plate boundary

Answer 25

1. MOR both oceanic crust 2.east African rift

Question 26

how do transform plates move

Answer 26

slide past each other

Question 27

What is the Pacific example of transform boundary

Answer 27

San Andres(Continental crust)

Question 28

what is a convection current

Answer 28

1. Magma heats up,become less dense and rises

2. Magma cools,becomes more dense and sinks