Quiz 3, Chapter 2, pp. 23-30 Flashcards Preview

8th Science - Earth and Space > Quiz 3, Chapter 2, pp. 23-30 > Flashcards

Flashcards in Quiz 3, Chapter 2, pp. 23-30 Deck (10):
1

The most abundant element in the earth's crust is

oxygen

2

The idea that the earth's crust consists of huge plates that slowly drift over the earth's surface is the theory of

plate tectonics

3

The three major layers of the earth, based on composition, are the crust, the ____ and the _____.

mantle, core

4

A type of fold in which the rock layers buckle upward into an archlike structure is an

anticline

5

The area where the upper mantle and the lower mantle merge is the

transition zone

6

The deposits of sand, mineral fragments, and organic material that cover most of Earth's surface are

sediments

7

boundary between the crust and the mantle

Mohorovicic discontinuity

8

structure formed when a layer of rock breaks

fault

9

central part of the earth

core

10

structure formed by the bending of rocks under great force

fold

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