Geological Concepts

Geological Concepts

Assessment

Flashcard

Geography

6th - 8th Grade

Practice Problem

Hard

Created by

George Niinisto

FREE Resource

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28 questions

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1.

FLASHCARD QUESTION

Front

Pangaea

Back

A supercontinent that existed during the late Paleozoic and early Mesozoic eras, forming approximately 335 million years ago and beginning to break apart about 175 million years ago.

2.

FLASHCARD QUESTION

Front

Continental Drift

Back

The gradual movement of the continents across the earth's surface through geological time.

3.

FLASHCARD QUESTION

Front

Mid-ocean ridges

Back

Underwater mountain ranges formed by plate tectonics. They occur at divergent boundaries where new oceanic crust is formed.

4.

FLASHCARD QUESTION

Front

Seafloor spreading

Back

The process by which new oceanic crust is formed at mid-ocean ridges and slowly moves away from the ridge.

5.

FLASHCARD QUESTION

Front

Normal polarity

Back

A state in which the magnetic north points towards the geographic north pole, similar to today's magnetic field.

6.

FLASHCARD QUESTION

Front

Magnetic Reversal

Back

A change in the Earth's magnetic field resulting in the magnetic north being aligned with the geographic south, and vice versa.

7.

FLASHCARD QUESTION

Front

Tectonic Plate

Back

A massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.

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