Earth's Interior Lesson

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

• null

• 
  

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

Multiple Choice

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

• Stop moving

• Continue on without issue

• Change directions

• Travel deeper

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

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