The theory of plate tectonics (unit 3

Question 1

He was a Canadian scientist that proposed the lithosphere is broken into separate sections called plates (1965)

Answer 1

Tuzo Wilson

Question 2

Plates float on top of the ______?

Answer 2

asthensphere

Question 3

• Plates float on top of the Asthenosphere
• Convection currents rise in the asthenosphere and spread out beneath the Lithosphere
• Convection currents cause plates to move, producing changes in Earth’s surface
• Changes in Earth’s surface include volcanoes, mountain ranges, and deep ocean trenches

Answer 3

Tuzo Wilson’s Theory highlights (1965)

Question 4

Place where two plates slip past each other, moving in opposite directions. This also causes frequent earthquakes.

Answer 4

transform boundary

Question 5

Two plates move apart or diverge; usually, occur at the mid-ocean ridge

Answer 5

Divergent boundary

Question 6

occurs when a deep valley is formed along a divergent boundary that develops on land.

Answer 6

Rift valley

Question 7

Place where two plates come together or converge, causing collision

Answer 7

Convergent boundary

Question 8

When two oceanic crust collide, or when an oceanic plate collides with a continental plate, one plate is subducted beneath the other forming a trench

Answer 8

Convergent boundary (oceanic-to-continental)

Question 9

When two continental plates collide they form mountains

Answer 9

Convergent boundary (continental-to-continental)

Question 10

What are the three types of plate boundaries

Answer 10

Transform, Divergent and Convergent