2.1- Structure of the Earth

The most abundant element in the earth's crust is iron.

b

true

false-oxygen

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.

a

true

false

Tags

NGSS.MS-ESS2-3

A type of fold in which the rock layers buckle upward into an arch-like structure is a syncline.

b

false- anticline

true

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

a

true

false- metamorphose

The structure formed when a layer of rock breaks and moves is a fold.

b

true

false- fault

Match the following:

• central part of the earth

• 
• the middle layer of the earth

• 
• area between the upper mantle and lower mantle

• 
• the plastic rock in the lower portion of the upper mantle

• 
• boundary between the crust and the mantle 

• 

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2