Earth's Interior

Earth's Interior

Mrs. Hogue

Clues to Earth’s interior

• What’s below:

• Deep mines & wells give clues

• Deepest mine 3km Deepest well 12km deep

• People cannot go down, but can send instruments

• Temperature and pressure increase with depth

• As you move down, temperature and pressure increase

Using earthquake waves

• Studied indirectly Earthquakes release energy in the form of 3 waves

• Some waves cannot travel through certain materials

• Change directions when they hit certain materials

• Use this information to infer the density and composition of materials within Earth

• 
  

Multiple Select

What 2 things allow scientists to have a clue about what is going on below the surface

• Wells

• Holes

• Mines

• Ocean

Multiple Choice

What happens to temperature as you go further down into Earth?

• Increases

• Decreases

• Stays the Same

Multiple Choice

What happens to pressure the further down into Earth you travel?

• Increases

• Decreases

• Stays the Same

Fill in the Blanks

Within using earthquakes to get clues, we know that some waves

travel through certain materials.

Multiple Choice

When an earthquake wave hits certain materials, the wave will:

• Stop moving

• Continue on without issue

• Change directions

• Travel deeper

Video- Copy the link and paste into a separate tab to watch.

https://youtu.be/7c-m0-FICio

Earth's Layers

• Crust

• Thinner than other layers

• Oceanic and Continental

• Mantle

• Contains more magnesium and iron

• Denser than crust

• Largest layer of Earth

Earth's Layers

• Core

• Metallic center of Earth

• Outer core

• Liquid because temperature is greater than pressure

• Inner Core

• Solid because pressure is greater than temperature

• 
  

Multiple Choice

Is the outer core a solid or a liquid?

• Liquid

• Solid

Multiple Choice

What state of matter is the inner core?

• Solid

• Liquid

• Gas

Multiple Choice

What is the order of the Earth's layers from outside to the inside?

• Crust, Mantle, Inner Core, Outer Core

• Outer Core, Inner Core, Mantle, Crust

• Crust, Mantle, Outer Core, Inner Core

Multiple Choice

True or False: The crust is the thinnest layer.

• True

• False

Earth's Core & Geomagnetism

• Earth’s spinning core creates the magnetic field

• Earth’s magnetic field

• Created because the inner core spins faster than the outer core

• This is what allows compasses to work

Earth’s Core & Geomagnetism

• Magnetosphere

• Protects Earth from cosmic rays and the sun

• Pushes some things away and traps others

Multiple Choice

Earth's liquid inner core and solid outer core is what allows us to have geomagnetism.

• True

• False

Multiple Select

What two things work together to allow compasses to work?

• Crust

• Mantle

• Inner Core

• Outer Core

Fill in the Blanks

This is what protects Earth from cosmic rays and pushes some things away from Earth..

Copy and Paste the link into a separate browser tab.

https://youtu.be/Q9j1xGaxYzY