Why did no one believe Wegener's thoery?

He could not explain HOW the continents moved.

He didn't use the right technology to gather data.

Which statement best explains Wegener's hypothesis of continental drift?

The continents were once part of the same landmass and have drifted very slowly to their current positions.

Volcanic activity slowly reshapes the continents throughout Earth's geologic history.

The continents shift locations as a result of major catastrophes like meteorite impacts and earthquakes.

The continents rapidly change places from one hemisphere to another when Earth's magnetic field reverses.

Which statement best compares the theories of plate tectonics and continental drift?

Continental drift proposes that the continents move; plate tectonics proposes the mechanism for HOW the continents move.

Plate tectonics and continental drift are two names for the same theory.

Plate tectonics proposes that the continents move; continental drift proposes the mechanism for how the continents move.

Continental drift proposes that the continents move; plate tectonics proposes that the continents are stationary.

Which statement does NOT summarize one of the lines of evidence used by Alfred Wegener to support his theory of continental drift?

Bands of rock are older the farther their position from a mid-ocean ridge.

Glacial deposits indicate a different climatic condition.

Similar fossils are found on widely separated continents.

Similar geologic formations occur on both sides of the Atlantic Ocean.

Which statement best summarizes the theory of continental drift?

All of the continents were once joined together into a single supercontinent.

Only the continents move, traveling slowly over and through Earth’s crust.

The continents are fixed and have always been located in their present positions.

Earth’s crust is divided into plates that move slowly over, against, and apart from each other.

Which of the following best explains the difference between continental drift and plate tectonics?

Continental drift was Wegener's hypothesis that Earth's continents were once part of a supercontinent that has since broken apart; plate tectonics is the theory that explains HOW continental drift happens.

Continental drift describes the motion of Earth's continents only; plate tectonics describes the motion of the crust beneath Earth's oceans as well.

Continental drift is supported only by observations of similar coastlines and geologic features on opposite sides of an ocean; plate tectonics is supported by a wide range of fossil evidence as well.

Plate tectonics was Wegener's theory that Earth's continents rest on sections of Earth's crust that drift together and apart over time; continental drift is a hypothesis describing how plate tectonics might happen.

How does fossil evidence support Wegener's hypothesis of continental drift?

Similar fossils are found along continental margins that appear to join together.

Fossils are found in areas where the present-day climate could not have supported the organisms that made the fossils.

Similar fossils of giant, land-dwelling dinosaurs are found on continents separated by oceans.

Which statement best explains why scientists of Wegener's time did not accept his continental drift hypothesis?

He could not explain HOW the continents had moved.

They thought Wegener's methods were unscientific.

They didn't believe that Earth was over 200 million years old.

Most scientists of Wegener's time accepted his continental drift hypothesis.

Which statement best explains how the continents have changed over the last 200 milion years, according to the continental drift hypothesis?

They split apart from a supercontinent and very slowly moved to their current positions.

They drifted into and out of about seven different supercontinent configurations.

They drifted into and out of about fifteen different supercontinent configurations.

They formed a stable supercontinent until the last ice age, when they rapidly moved to their current positions.

Which evidence supports Wegener's continental drift hypothesis?

similar fossils found on opposite sides of an ocean

meteorite impact craters in continental crust

the buildup of sediment along continental margins

South America and Africa appear to fit together like pieces in a puzzle. This observation is explained by

the hypothesis of continental drift

Which of these does NOT provide evidence for the theory of continental drift?

megladon fossils high in the mountains

matching rocks and mountain belts in continents that are now separated

mesosaurus fossils on widely separated continents

glossopteris fossils in Antarctica

Continental Drift Review

Authored by Charles Martinez

Other Sciences

6th - 8th Grade

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is this a picture of?

plate tectonics

continental drift

Pangaea

glacial scarring

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

This is a picture of glacial scars found in Africa. What are these evidence for?

Africa has always been near the equator.

Africa was once in an area of the Earth that had a very cold climate.

The continents have not moved.

sea floor spreading

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What does the theory of continental drift state?

The continents were once joined in a super-continent and have moved over time.

Continents are stationary and do not move.

The Earth is broken into lithospheric plates that move due to convection currents.

none of the above

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What evidence did Wegener use in his theory?

continents fit together like puzzle pieces and similar fossils in widely-spread areas

glacial scars and evidence from ancient climates

mountain ranges and coal deposits line up across continents

all of the above

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is one of the first pieces of data that Wegener collected that led him to believe that the continents had moved?

He discovered the mid-ocean ridge.

He found convection currents that caused plate movement.

He discovered that Greenland's longitude had not always been the same.

He found that Africa and South America were connected.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What two specific continents fit together most noticeably?

Africa and North America

South America and Europe

South America and Africa

Antartica and Africa

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What technology did Wegner use in his study of Greenland?

GPS

Sonar

Radar

Maps

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Continental Drift Review

What is this a picture of?

This is a picture of glacial scars found in Africa. What are these evidence for?

What does the theory of continental drift state?

What evidence did Wegener use in his theory?

What is one of the first pieces of data that Wegener collected that led him to believe that the continents had moved?

What two specific continents fit together most noticeably?

What technology did Wegner use in his study of Greenland?

How long ago is Pangaea believed to have existed?

Why did no one believe Wegener's thoery?

Who is the person credited with developing the theory of continental drift?

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