Plates

Question 1

What is a divergent plate boundary

Answer 1

Plates moving apart

Question 2

What is a transform plate

Answer 2

Plates sliding past each other

Question 3

What is ocean vs. ocean

Answer 3

Converging

Question 4

What happens with ocean vs. ocean

Answer 4

Collision

Subduction

Question 5

What does ocean vs. ocean cause

Answer 5

Island arcs

Question 6

What is an example of an island arc

Answer 6

Japan

Question 7

What is ocean vs. continent

Answer 7

Converging

Question 8

What happens with ocean vs. continent

Answer 8

Subduction forming ocean trench

Question 9

What does ocean vs. continent cause

Answer 9

Andes mountain range

Question 10

What is continent vs. continent

Answer 10

Converging

Question 11

What happens with continent vs. continent

Answer 11

Two plates collide

Question 12

What does continent vs. continent create

Answer 12

Large mountains ranges

Question 13

What is an example of continent vs. continent

Answer 13

Himalayas

Question 14

What does converge =

Answer 14

Deconstructive

Question 15

What does diverge =

Answer 15

Constructive

Question 16

What does transform =

Answer 16

Conservative

Question 17

What are tectonic plates made of

Answer 17

Lithosphere

Question 18

What do tectonic plates float on

Answer 18

Asthenosphere

Question 19

Who came up with the theory of continental drift

Answer 19

Alfred Wegener

Question 20

What year did he create his theory

Answer 20

1912

Question 21

What is a supercontinent

Answer 21

All continents formed as one

Question 22

What was the name of the supercontinent

Answer 22

Pangaea

Question 23

What was the sea surrounding Pangaea

Answer 23

Panthalassa

Question 24

How long ago did they break apart

Answer 24

200 million years

Question 25

What were the two subcontinents

Answer 25

Gondwanaland | Laurasia

Question 26

What was his evidence

Answer 26

The continents fit together

Question 27

What was the mesosaurus

Answer 27

South American/African Water reptile Fresh water only

Question 28

What was the lystrosaurus

Answer 28

Land reptile African/Australia/India Antarctica

Question 29

What is the cynognathus

Answer 29

Land reptile Africa/ South America Triassic period

Question 30

What is the glossopteris

Answer 30

Tropical tree | Gondwanaland

Question 31

What is the climate evidence

Answer 31

Evidence of glaciers | Evidence of tropical rainforest

Question 32

What happened to his theory

Answer 32

Rejected Credited 50 years later Moves because of convection current

Question 33

Who came up with sea floor spreading

Answer 33

Harry Hess

Question 34

What year did Hess come up with theory

Answer 34

1962

Question 35

How did he find his theory

Answer 35

Found cracks in mountains known as rifts

Question 36

What did he propose

Answer 36

New crust was forming and diverging

Question 37

What was his theory of Pangaea breaking

Answer 37

Large continent gets cracked Gaps fill with water Water becomes ocean Continental crust keeps spreading

Question 38

What is the evidence

Answer 38

Sea floor ages | Magnetic striping

Question 39

What are sea floor ages

Answer 39

Oldest rocks away from rift | Symmetrical ages on both sides

Question 40

What is magnetic striping

Answer 40

Magnetites in sea floor get arranged to magnetic field