Drift and Boundaries
By Erin Smoak
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Last updated almost 5 years ago
39 Questions
Note from the author:
This one is about Alfred Wegener's theory of continental drift, seafloor spreading, and plate tectonics.
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1.
Who first proposed the theory of continental drift?
Who first proposed the theory of continental drift?
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2.
What year did Wegener publish his book?
What year did Wegener publish his book?
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3.
What was Wegener's theory called?
What was Wegener's theory called?
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4.
What did Wegener's book have in it?
What did Wegener's book have in it?
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5.
What were Wegner's 3 lines of evidence?
What were Wegner's 3 lines of evidence?
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6.
What were 2 of the fossils that Wegener used as part of his evidence?
What were 2 of the fossils that Wegener used as part of his evidence?
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7.
What 2 places did they find tropical plant fossils that are currently covered in ice?
What 2 places did they find tropical plant fossils that are currently covered in ice?
4
8.
What did Wegener find in South Africa? (Read the whole page)
What did Wegener find in South Africa? (Read the whole page)
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9.
What kind of rock was in both North America and Scotland?
What kind of rock was in both North America and Scotland?
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10.
What did Wegener name the supercontinent?
What did Wegener name the supercontinent?
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11.
What was the main reason that most scientists rejected Wegener's hypothesis?
What was the main reason that most scientists rejected Wegener's hypothesis?
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12.
When was this theory revisited?
When was this theory revisited?
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13.
What caused scientisit to revisit continental drift?
What caused scientisit to revisit continental drift?
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14.
What did sonar find on the ocean bottom?
What did sonar find on the ocean bottom?
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15.
All are evidence to support the theory of continental drift EXCEPT
All are evidence to support the theory of continental drift EXCEPT
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16.
What new technology did scientists use to map the bathymetry of the ocean floor?
What new technology did scientists use to map the bathymetry of the ocean floor?
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17.
Magnetic stripes are ____________ on either side of the mid ocean ridge.
Magnetic stripes are ____________ on either side of the mid ocean ridge.
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18.
Rocks on the sea-floor that lie in a pattern, show a record of the reversals of
Rocks on the sea-floor that lie in a pattern, show a record of the reversals of
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19.
What new technology did scientists use to find changes on either side of the mid-ocean ridge?
What new technology did scientists use to find changes on either side of the mid-ocean ridge?
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20.
Where is the youngest seafloor?
Where is the youngest seafloor?
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21.
Sea-floor spreads apart at both sides of a _____ as new crust is added.
Sea-floor spreads apart at both sides of a _____ as new crust is added.
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22.
Drilling samples revealed that rock samples taken farther from a mid-ocean ridge are
Drilling samples revealed that rock samples taken farther from a mid-ocean ridge are
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23.
What new information led to the expanding earth theory?
What new information led to the expanding earth theory?
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24.
When continental plates collide what landform is made?
When continental plates collide what landform is made?
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25.
Which type of plates go under other plates?
Which type of plates go under other plates?
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26.
What mixes with rock to melt it?
What mixes with rock to melt it?
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27.
What causes the volcanoes on the ring of fire?
What causes the volcanoes on the ring of fire?
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28.
What is the example of a transform fault (where plates slide past each other)?
What is the example of a transform fault (where plates slide past each other)?
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29.
How long has the earth's surface been shifting?
How long has the earth's surface been shifting?
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30.
How many major plates are on Earth?
How many major plates are on Earth?
2
31.
How hot is the mantle?
How hot is the mantle?
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32.
Why is part of the mantle solid?
Why is part of the mantle solid?
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33.
Which layer of the earth is under the most pressure?
Which layer of the earth is under the most pressure?
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34.
What is the temperature-propelled motion in the mantle called?
What is the temperature-propelled motion in the mantle called?
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35.
Where are the 2 extra hot regions of the mantle?
Where are the 2 extra hot regions of the mantle?
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36.
How long does it take for the oldest, coolest parts of the crust to sink back into the mantle?
How long does it take for the oldest, coolest parts of the crust to sink back into the mantle?
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37.
How fast do plates move?
How fast do plates move?
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38.
What was the name of the giant landmass about 250 million years ago?
What was the name of the giant landmass about 250 million years ago?
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39.
What is the theory about crust moving called today?
What is the theory about crust moving called today?