Alfred Wegener and Plate Tectonics

Question 1

Flemish map maker Abraham Ortelius noted the coastlines of continents appeared to fit together in the year ____

Answer 1

1596

Question 2

In 1912 Alfred Wegener proposed the theory of…

Answer 2

continental drift

Question 3

Wegener suggested all continents were once joined in a super continent called….

Answer 3

pangea

Question 4

Wegener based his theory on…

Answer 4

geological evidence and fossil records

Question 5

In 1912 Wegener couldn’t back his theory up with a mechanism to explain….

Answer 5

how the plates are moved

Question 6

In the 1950’s oceanographic vessels mapping the ocean floor provided data on the topographic features of the ocean basin, leading to the discovery of…

Answer 6

mid ocean ridges

Question 7

In the 1950’s _______________ provided evidence that supported continental drift

Answer 7

palaeomagnetism

Question 8

Mid ocean ridges are found at divergent plate boundaries and Harry H Hess discovered that oceanic crust forms as the plates divide leading to the process of…

Answer 8

sea floor spreading

Question 9

In the 1970’s scientists created _______ _________ computer images to investigate the dynamic processes inside the earth.

Answer 9

seismic tomography