Development of continental drift and plate tectonic theory

Question 1

What year was did Alfred wegener notice the continents looking like puzzle pieces

Answer 1

1912

Question 2

What is the super continent called?

Answer 2

PANGEAE

Question 3

Mid ocean ridges meaning

Answer 3

Mountain ridges along the ocean floor.

Question 4

Rift

Answer 4

A crack in the valley of the centre of the ridge; magma inside the earths rises to dill the crack

Question 5

What is magma

Answer 5

Molten rocks or melted rocks

Question 6

Trenches meaning

Answer 6

Deep valleys in ocean floor.

Question 7

Sea floor spreading meaning

Answer 7

Process of magma rising to the surface at mid-ocean ridge to form new ocean crust

Question 8

Explaination of seafloor spreading

Answer 8

Magma rises through cracks in the ocean floor, creating rocks.the rocks push aaway old rocks from the ridge as the rocks push the sea floor spreads.

Question 9

Evidence for drift

Answer 9

Apparent fit of the continents, fossil correlation, rock nd mountain correlation, paleo climate data