Plate Tectonics

Question 1

What was Wilson’s discovery?

Answer 1

.Cracks in the continental crust

Question 2

Plate

Answer 2

.A section of the lithosphere that slowly moves carrying pieces of continental and oceanic crust

Question 3

Plate tectonics

Answer 3

.Geological theory that pieces of the lithosphere are moving by convection currents in the mantle

Question 4

Convergent boundary

Answer 4

.Plates pushing against each other

Question 5

Divergent boundary

Answer 5

.Plates pulling away from each other

Question 6

Transform boundary

Answer 6

.Plates sliding past each other

Question 7

Scientific theory

Answer 7

.Well tested theory that explains a scientific observation

Question 8

How do the Earth’s plates move?

Answer 8

.Plates float on top of the asthenosphere, convection currents rise in the asthenosphere and spreadable out beneath the lithosphere

Question 9

Crust is neither created or destroyed along a transform boundary, but what does happen?

Answer 9

Earthquakes

Question 10

What feature appears at a divergent boundary where two pieces of oceanic crust are pulling apart?

Answer 10

.Mid Atlantic Ridge

Question 11

What forms at a divergent boundary on land?

Answer 11

.

Rift Valley

Question 12

How does a Rift Valley form?

Answer 12

.Two pieces of continental crust pull away from each other making a valley that soon gets filled with water

Question 13

Give an example, of a Rift Valley?

Answer 13

.Great Rift Valley

Question 14

Three types of convergent valleys

Answer 14

.Oceanic and oceanic
Oceanic and continental
Continental and continental

Question 15

What happens when two oceanic plates collide?

Answer 15

Volcanic islands slowly form

Question 16

Where on Earth do oceanic plates collide?

Answer 16

.Marianna’s island

Question 17

What happens when two continental plates collide?

Answer 17

.They form mountains

Question 18

Where on Earth do continental plates collide?

Answer 18

.Himalayas

Question 19

What happens when oceanic and continental plates collide?

Answer 19

.The oceanic gets subducted into the mantle due to having a higher density and forms volcanoes

Question 20

Where do continental and oceanic collide on Earth?

Answer 20

.Andes

Question 21

How do the Earth’s crustal plates move?

Answer 21

.They float above the mantle and cooled but convection currents are pushing it

Question 22

Name eight plates

Answer 22

North American
EurAsian
Pacific
African
Nazca
South American
Indo-Australian
Antarctic

Question 23

Who is J Tuzo Wilson

Answer 23

.The man who discovered tectonic plates