Continental Drift, Plate Tectonics and Seafloor Spreading

Continental Drift, Plate Tectonics and Seafloor Spreading

Assessment

Flashcard

Science

9th - 10th Grade

Easy

Created by

Wayground Content

Used 2+ times

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Continental Drift?

Back

The theory that continents have moved over geological time and were once joined together in a single landmass.

2.

FLASHCARD QUESTION

Front

What is Plate Tectonics?

Back

The scientific theory that explains the movement of Earth's plates and the processes that occur at their boundaries.

3.

FLASHCARD QUESTION

Front

What is Seafloor Spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.

4.

FLASHCARD QUESTION

Front

What does a Conveyor Belt represent in geology?

Back

It represents the movement of tectonic plates during seafloor spreading.

5.

FLASHCARD QUESTION

Front

What happens during Seafloor Spreading?

Back

New oceanic crust is created as magma rises to the surface at mid-ocean ridges.

6.

FLASHCARD QUESTION

Front

Why was Wegener's theory of Continental Drift initially rejected?

Back

He could not explain HOW the continents moved.

7.

FLASHCARD QUESTION

Front

What is the average density of continental crust?

Back

2.8 g/cm³.

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