The Earth is made up of different spheres and layers...

Why are there layers? What are their names?

What are the names of the different spheres?

List anything else that you might know about the Earth’s spheres and layers.

Warm-Up Questions

4 major spheres1. Hydrosphere

The water portion of the Earth Ex: oceans, rivers, lakes, streams, glaciers,

etc.

2. Atmosphere Gaseous portion of a planet Earth’s pocket of air

Earth’s Spheres

4 major spheres1. Hydrosphere2. Atmosphere

3. Geosphere Layer of the Earth found beneath the

atmosphere and the oceans. Consists of 3 main layers

4. Biosphere Consists of all life on Earth The parts of the 3 other spheres where

life exists

Earth’s Spheres

1. How do the hydro-, geo-, and atmospheres affect the biosphere?

2. How do members of the biosphere affect the geosphere?

3. How do members of the biosphere affect the hydro- and atmosphere?

4. Which of the 4 major spheres do you believe has the most influence on the others?

Earth’s Spheres Questions

Geosphere Layers

1.

2.

3.

Why does the Earth have layers?

1. Crust – thin rocky outer layer of the EarthContinental crustOceanic crust

2. Mantle – thick middle layer of hot but solid rockLithosphere – includes upper mantle and crustAsthenosphere – soft weak rock below Lithosphere

that can flow like taffyMesosphere – stiff rock below asthenosphere, right

above the…

3. Core – large sphere of metal that occupies the Earth’s centerOuter – liquid due to high temperature Inner – solid due to high pressure

Which part of Earth’s interior takes up the greatest volume?

Which region takes up the smallest volume?

Where is continental crust the thickest?

Questions

What happens to temperature as you move from the crust towards the core?

What happens to pressure as you move from the crust towards the core?

Why does the Earth have layers that have formed?

Questions

Draw a picture of the Earth that includes its 4 major spheres and 3 main layers. Include a description of the 4 major spheres Include the 3 layers of the mantle, as well as, the

inner and outer coreLabel:

The width of the major layersA description of each layerMake note of what happens to Temperature and Pressure

as you move from the outer layers inward.Use colored pencils or crayons to color the layers

different colorsMAKE SURE picture is drawn to scale!!!

You will be using this to help you study, so make sure you write neatly.

Earth’s Layers Activity

In the movie Journey to the Center of the Earth, the people find a tropical paradise with sea monsters and dinosaurs at the center of the earth. What is the center layer of the earth known as? Explain why a tropical paradise like this cannot be found as was shown in the movie.

Exit Slip

Name all the layers of the earth. Start with the outermost and work your way in.

Which part of the core (outer or inner) is liquid and which is solid? Why is one liquid and one solid?

Warm-Up Questions

Draw a picture of the Earth that includes the 3 main layers. Include the 3 layers of the mantle, as well as, the inner and

outer coreLabel:

The width of the major layersA description of each layer (what type of rock they are made up

of, liquid, solid, hot, flow, etc.)Make note of what happens to Temperature and Pressure as you

move from the outer layers inward.Use colored pencils or crayons to color the layers different

colors

You will be using this to help you study, so make sure you write neatly.

Earth’s Layers Activity