Ch 14 The Continental Drift

Ch 14-1

The Continental Drift

Fill in the Blanks

Almost 100 years age, Alfred Wegener noticed similarities in shapes of the continents'

.

Fill in the Blanks

He suggested that long ago Earth's

.

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One supercontinent was called

by Wegener.

Multiple Choice

____was proposed by Wegener and states that Earth's continents are in constant motion on the surface of Earth.

• Pangaea

• continents

• Continental Drift

• Caledonian

Multiple Choice

____ indicates that similar plants and animals once lived on continents separated by oceans.

• climate

• fossils

• rock

Multiple Choice

He discovered grooves made by ice sheets on continents that today are located in ____climates.

• cold

• warm

• average

Multiple Choice

According to Wegener, these continents were once located near the ____.

• North Pole

• South Pole

• equator

Multiple Choice

Wegener also discovered clues in ____ when he observed that mountain ranges on different continents have similar ages and ____ structures.

• rock/geologic

• geologic/rock

Fill in the Blanks

To Wegener, Earth's continents fit together just like a

.

Multiple Choice

Wegener proposed the continental drift hypothesis suggesting that continents are in constant motion on the Earth's surface.

• True

• False

Multiple Choice

Glossopteris was a supercontinent consisting of Earth's present-day continents.

• True

• False

Multiple Choice

One of Alfred Wegener's pieces of evidence for continental drift was data from the seafloor.

• True

• False

Multiple Choice

Wegener used fossil ferns to suggest that a supercontinent existed about 250 million years ago.

• True

• False

Multiple Choice

Glacial grooves in rocks in Africa suggests that this continent was once located in a much colder place.

• True

• False

Multiple Choice

Rocks with a similar makeup and age in South America and Africa supported Wegener's idea of moving continents.

• True

• False

Multiple Choice

Coal beds in Antarctica suggest that this continent once had a warm climate.

• True

• False

Multiple Choice

Wegener's hypothesis of moving continents was not accepted by many because he did not have much data to support it.

• True

• False

Multiple Choice

The puzzlelike fit of continental coastlines was one piece of evidence Wegener used to suggest that the continents were once joined.

• True

• False