Earth's Layers

​-Mrs. Heter

Use the following slides to complete page 6 in your booklet.

Reorder

Put the layers of Earth in order from Outermost to Innermost Layer.

• Crust

• Mantle

• Outer Core

• Inner Core

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

Temperature and pressure ___ as you move towards the center of the Earth.

• decrease

• increase

• neither answer is correct.

Multiple Choice

Which of the following is the correct order of the Earth's layers moving inward to the center.

• Crust

  Mantle

  Inner Core

  Outer Core

• Mantle

  Outer Core

  Inner Core

  Crust

• Inner Core

  Outer Core

  Crust

  Mantle

• Outer Core

  Inner Core

  Mantle

  Crust

Open Ended

What are the two types of crust?

Multiple Choice

What is "solid earth" called?

• Atmosphere
• Hydrosphere

• Lithosphere
• Biosphere

Multiple Choice

What is the outermost layer of Earth called?

• Mantle
• Crust
• Inner Core
• Outer Core

Pressure

The deeper inside Earth, the greater the mass of the rock that is pressing down from above. This creates pressure. The deeper down inside the Earth, the greater the pressure is.

Temperature

The mass of rock that presses down and causes this pressure also affects the temperature inside the Earth. The temperature inside the Earth increases as depth increases. The intense pressures squeeze rocks together and releases energy from radioactive substances.

_{**watch pool video before next slide}

The Mantle Has 2 Main Parts

• The Lithosphere: Made up of two parts- the crust and the rigid upper part of the mantle. This is where tectonic plates are found

• The Asthenosphere: Plastic / Silly putty like part of the mantle that the lithosphere sits on

• The movement of the asthenosphere moves tectonic plates

Multiple Choice

The mantle makes up nearly ___ of Earth's mass.

• $$\frac{1}{3}$$  

• $$\frac{1}{4}$$  

• $$\frac{1}{2}$$  

• $$\frac{2}{3}$$  

Multiple Choice

The soft layer of the mantle on which the tectonic plates move

• Asthenosphere
• Outer Core
• Mantle
• Mesosphere

Multiple Choice

Temperature _____________________ as you go deeper into the earth.

• increases
• decreases
• goes up and down depending on the layer
• stays the same

Multiple Choice

Why is the Inner Core solid?

• Extreme Heat
• High Pressure
• All the layers are solid
• It's made of rock

Multiple Choice

The core is made-up of what two elements?

• iron and nickel
• iron and oxygen
• nickel and silicon
• oxygen and silicon

Multiple Choice

What is the thinnest layer of the earth’s composition?

• mantle
• inner core
• crust
• outer core

Multiple Choice

The thickest layer of the earth is the 

• crust
• mantle
• inner core
• outer core

Multiple Choice

Which layer of the Earth is responsible for Earth's magnetic field?

• outer core
• inner core
• mantle
• crust

Multiple Choice

Which layer of the Earth is the most dense?

• crust
• mantle
• inner core
• outer core

Multiple Choice

The crust and upper portion of the mantle are called the

• asthenosphere.

• lithosphere.

Multiple Choice

This is the portion of the Earth's mantle where convection occurs.

• Asthenosphere

• Lithosphere