Continental Drift and Plate Tectonic Notes Review

Question 1

Pangaea is a __________

Answer 1

supercontinent

Question 2

Alfred’s Evidence (all four)

Answer 2

1. Geometric Evidence
2. Fossil Evidence
3. Mountain Evidence
4. Climate Change

Question 3

Alfred Evidence (all four & explain)

Answer 3

1. Geometric Evidence: Can all fit together
2. Fossil Evidence: Sam fossil in different continent
3. Mountain Evidence: Same mountains on different continent
4. Climate Change: Climate very different

Question 4

Hypothesis vs Theory

Answer 4

Hypothesis can’t explain “how”
Theory can explain “how”

Question 5

Harry Hess used _____ to find Mid-Ocean Ridges

Answer 5

Sonar

Question 6

Harry Hess proves Alfred’s hypothesis using ___________ _________

Answer 6

Sea-Floor Spreading

Question 7

Rocks further away from Mid-Ocean Ridges are ______

Answer 7

older

Question 8

Rocks closer to the Mid-Ocean Ridge are _______

Answer 8

newer

Question 9

Magnetic Strips are the same on both sides

Answer 9

Magnetic Fields may have switched

Question 10

The Driving Forces of Plate Movement (all three)

Answer 10

1. Convection Currents (strongest)
2. Gravity (mid)
3. Pressure (weakest)

Question 11

The Driving Forces of Plate Movement (all three and apply)

Answer 11

1. Convection Currents (strongest): move them like they are in a conveyor belt
2. Gravity (mid): Pull objects towards the Earth, Subduction
3. Pressure (weakest): Pushes outwards, volcano

Question 12

The Lithosphere are also called the __________ ______

Answer 12

Tectonic Plates