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DM Drift and Boundaries

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Last updated over 5 years ago
30 questions
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Question 1
1.

Who first proposed the theory of continental drift?

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Question 15
15.

All are evidence to support the theory of continental drift EXCEPT

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Question 16
16.

What new technology did scientists use to map the bathymetry of the ocean floor?

Question 17
17.

Rocks on the sea-floor that lie in a pattern, show a record of the reversals of

Question 18
18.

Sea-floor spreads apart at both sides of a _____ as new crust is added.

Question 19
19.

Drilling samples revealed that rock samples taken farther from a mid-ocean ridge are

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Question 20
20.

What new information led to the expanding earth theory?

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Question 2
2.

What year did Wegener publish his book?

Question 3
3.

What was Wegener's theory called?

Question 4
4.

What did Wegener's book have in it?

Question 5
5.

What were Wegner's 3 lines of evidence?

Question 6
6.

What were 2 of the fossils that Wegener used as part of his evidence?

Question 7
7.

What 2 places did they find tropical plant fossils that are currently covered in ice?

Question 8
8.

What did Wegener find in South Africa? (Read the whole page)

Question 9
9.

What kind of rock was in both North America and Scotland?

Question 10
10.

What did Wegener name the supercontinent?

Question 11
11.

What was the main reason that most scientists rejected Wegener's hypothesis?

Question 12
12.

When was this theory revisited?

Question 13
13.

What caused scientisit to revisit continental drift?

Question 14
14.

What did sonar find on the ocean bottom?

Question 21
21.

When continental plates collide what landform is made?

Question 22
22.

Which type of plates go under other plates?

Question 23
23.

What mixes with rock to melt it?

Question 24
24.

What causes the volcanoes on the ring of fire?

Question 25
25.

What is the example of a transform fault (where plates slide past each other)?

Question 26
26.

How long has the earth's surface been shifting?

Question 27
27.

How many major plates are on Earth?

Question 28
28.

How fast do plates move?

Question 29
29.

What was the name of the giant landmass about 250 million years ago?

Question 30
30.

What is the theory about crust moving called today?