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Continental drift

Last updated over 6 years ago

32 questions

Note from the author:

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This is about the history of plate tectonics starting with continental drift and going forward with new technologies.

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Question 15

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Question 29

29.

Label the direction of plate movement and convection in the asthenosphere for a divergent plate boundary. Draw arrows!

Question 30

30.

Label the direction of plate movement and convection in the asthenosphere for a convergent plate boundary. Draw arrows!

Question 31

31.

Explain what happens during the process of subduction in your own words.

Question 32

32.

Label the direction of plate movement of a transform plate boundary. Draw arrows!

Who first proposed the theory of continental drift?

Wilson

Hess

Wegener

Pangea

Question 2

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Question 9

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Question 13

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Question 14

14.

All are evidence to support the theory of continental drift EXCEPT

rainfall

land features

fossils

climate change

Question 16

16.

Magnetic stripes are ____________ on either side of the mid ocean ridge.

Younger

Asymmetrical

Symmetrical

Lighter

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

temperature

magnetic field

atmosphere

diversity

Question 19

19.

Question 20

20.

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

trench

mountain

rift valley

mid-ocean ridge

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

hotter

crystal

older

younger

Question 23

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Question 24

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Question 26

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Question 27

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Question 28

28.

What year did Wegener publish his book?

1912

1957

1972

1812

What was Wegener's theory called?

Continental Drift

Rafting

Expanding Earth

Plate Tectonics

What did Wegener's book have in it?

Ideas

Laws

Evidence

What were Wegner's 3 lines of evidence?

Weather

Animals

Climate

Rocks

Fossils

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

T Rex

 Spinosaurus

Glossoptris

Mesosaurus

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

Antarctica

Russia

Iceland

Greenland

Africa

What did Wegener find in South Africa?

Deep scratches from glaciers

Mesosaurus Fossils

Glossopteris Fossils

Fossils of tropical plants

Limestone

Rocks from South America

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

Granite

Slate

Limestone

Basalt

What did Wegener name the supercontinent?

Laurentia

Eurasia

Pangaea

Gondwanaland

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

Because he didn't have enough evidence

Because he was annoying

Because he couldn't tell them how it worked 

Because he was a meterorologist

When was this theory revisited?

1920's

1970's

1950's

2000's

What caused scientisit to revisit continental drift?

New rocks

New technology

New fossils

The war

What did sonar find on the ocean bottom?

Plateaus

Valleys

Plains

Mountains

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

Echolocation

Radar

Sonar

Magnetometer

What new technology did scientists use to find changes on either side of the mid-ocean ridge? 

Magnetometer

Radar

Compass

Sonar

Where is the youngest seafloor?

At the top of the ridge

In trenches

Near the shorelines

In the plains

What new information led to the expanding earth theory?

Tectonic Plates

Subduction

Seafloor Spreading

Plate Tectonics

When continental plates collide what landform is made?

Mountains

Trenches

Islands

A and B

All of the Above

Which type of plates go under other plates?

More dense and thick

Less Dense and thin

More dense and thin

Less Dense and thick

What mixes with rock to melt it?

Oil

Air

Water

Silicon

What causes the volcanoes on the ring of fire?

Cooling

Consolidation

Upwelling

Rocking

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

Mt. Ranier

Ring of Fire

San Andreas

Mt. St. Helens