6.1 Earth's Layers Quiz

Shortly after the Earth had formed,​ (a)   created the individual layers by gravitationally pulling the​ (b)   dense material to the middle of the Earth.

• differentiation
• accretion
• most
• least

Tags

NGSS.HS-ESS1-6

NGSS.HS-ESS2-1

The​ (a)   layers of Earth are divided according to what elements and other substances they are made of.

The​ (b)   layers of Earth are divided according to their physical characteristics or how they behave.

• compositional
• structural

Identify the compositional (left side) and structural layers (right side) of the Earth shown in the diagram.

a

b

c

d

e

f

g

h

Inner Core

Mantle

Asthenosphere

Lithosphere

Crust

Outer Core

Mesosphere

Core

Match the layers of the Earth according to their description:

• Lithosphere

• The softer, semi-solid, flowing layer of rock; has convection currents causing tectonic plates to move

• Inner Core

• The layer composed mainly of liquid iron and nickel; responsible for Earth's magnetic field

• Mesosphere

• The solid outer layer of rock or stone; broken up into tectonic plates

• Outer Core

• The thick, solid "middle" layer of the Earth; lower portion of the mantle

• Asthenosphere

• The solid layer of iron and nickel; extremely hot and dense due to immense pressure

Match the layers of the Earth according to their description:

• Crust

• The thick, solid, middle layer composed mainly of iron and magnesium; acts like a "plastic" material over long periods of time

• Core

• The dense, innermost layer composed of iron and nickel; extremely hot

• Mantle

• The thin, solid outer layer composed of silicates (silicon + oxygen); two types: continental and oceanic

The "Moho" is a boundary between which two compositional layers of Earth?

• Crust & Mantle

• Lithosphere & Asthenosphere

• Mantle & Core

• Inner Core & Outer Core