Model for Earth Can you actually dig a

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Model for Earth

Model for Earth

Can you actually dig a hole to China?

Can you actually dig a hole to China?

 • What will you find as you dig through Earth to the other

• What will you find as you dig through Earth to the other side? What is the Earth made up of? • Explain your journey as you travel through the earth. • Is china actually below us? If you were to drill a hole directly down from Edmonton Alberta, where will you emerge from the other side of the planet? • Myth Busted? ? !

1. 1 Vocabulary ü Model ü Geologists ü Indirect ü Crust ü Mantle ü

1. 1 Vocabulary ü Model ü Geologists ü Indirect ü Crust ü Mantle ü Lithosphere ü Outer core ü Inner core

Models in Science • A model is an idea of something that cant be

Models in Science • A model is an idea of something that cant be fully known or seen. • Making models of things in Science can be thought of as the "Art" of constructing models which approximate the Real World. • It is a way to show an object or idea that is hard to picture/visualize it in real form

What is inside the Earth? Geologists are scientists that study the earth Geologists have

What is inside the Earth? Geologists are scientists that study the earth Geologists have used a model to help them understand what the earth is made from By digging up the earths surface, we can easily study the top layer, but we cannot dig to the center of the earth. Too far, too hot!

Geologists must study the earth indirectly, just like how astronauts study space And how

Geologists must study the earth indirectly, just like how astronauts study space And how do they do that? ? ? An indirect method is studying something not directly, using different tools and technology to get information

Layers of the Earth

Layers of the Earth

Watch the movie trailer for Journey to the Center of the Earth. Identify characteristics

Watch the movie trailer for Journey to the Center of the Earth. Identify characteristics that you think are true and those you think are not true. Be prepared to share. https: //www. youtube. com/watch? v= r. Qx 2 w. Lyagk 4

Essential Question: How are layers of the Earth different from one another?

Essential Question: How are layers of the Earth different from one another?

The Earth is made up of 4 main layers: Crust Mantle Outer Core Inner

The Earth is made up of 4 main layers: Crust Mantle Outer Core Inner Core

Think of the layers of the Earth like the layers of a cake.

Think of the layers of the Earth like the layers of a cake.

Use the Layers of the Earth Foldable to take notes

Use the Layers of the Earth Foldable to take notes

Land Ocean O ust r C c i cean Contine ntal Crust st

Land Ocean O ust r C c i cean Contine ntal Crust st

Crust Land Ocean st u r C c i n Ocea Continen tal Crust

Crust Land Ocean st u r C c i n Ocea Continen tal Crust • Thinnest layer of the Earth can be 10 km (areas of the ocean floor) to 90 km deep (under mountains) • It is were life is found! Made up of all the features we see on land • Made up of large amounts of silicon and aluminum • Two types of crust: oceanic crust and continental crust • Composed of plates on which the continents and oceans rest

The Earth’s crust is like the skin of an apple. Turn to an elbow

The Earth’s crust is like the skin of an apple. Turn to an elbow partner and discuss why this statement is true. Next, come up with another example.

Upper Mantle Convection Currents Lower Mantle Middle Mantle

Upper Mantle Convection Currents Lower Mantle Middle Mantle

Upper Mantle Convection Currents Lower Mantle • Thickest layer of the Earth (making up

Upper Mantle Convection Currents Lower Mantle • Thickest layer of the Earth (making up 70% of the Earth’s mass), about 2900 km thick • Upper mantle is solid like the crust (solid part of the mantle and crust is called the lithosphere) • Under the upper mantle there is molten rock Middle Mantle

Outer Core Inner Core

Outer Core Inner Core

Outer Core • Temperature is so high that this layer is molten (liquid) metal

Outer Core • Temperature is so high that this layer is molten (liquid) metal that is about 4, 700°C • Composed of the melted metals nickel and iron

Inner Core • Solid sphere composed mostly of iron • It is solid because

Inner Core • Solid sphere composed mostly of iron • It is solid because of the pressure from the outer core, mantle, and crust compressing it tremendously • It is believed to be as hot as 6, 650°C

The Earth is like a peach or a boiled egg. Turn to a seat

The Earth is like a peach or a boiled egg. Turn to a seat partner and discuss these analogies. Come up with another analogy and be prepared to share.

Crust Mantle Outer Core Liquid Lithosphere – Crust and Upper Layer of the Mantle

Crust Mantle Outer Core Liquid Lithosphere – Crust and Upper Layer of the Mantle (asthenosphere) that consists of hot rock of tar -like consistency, which slowly moves Inner Core Solid

The lithosphere (crust and upper mantle) is divided into separate plates which move very

The lithosphere (crust and upper mantle) is divided into separate plates which move very slowly in response to the “convecting” part of the mantle.

What do these two images tell us about the layers of the Earth?

What do these two images tell us about the layers of the Earth?

Temperature increases as depth increases

Temperature increases as depth increases

Look at the information in the graph and table below. What’s the relationship between

Look at the information in the graph and table below. What’s the relationship between depth and density/pressure?

Density and Pressure increase as depth increases

Density and Pressure increase as depth increases

Temperature, Density and Pressure increases as depth increases Add this statement to the arrow

Temperature, Density and Pressure increases as depth increases Add this statement to the arrow going down on your foldable.

Which layer of the Earth has the greatest temperature, pressure, and density? Core

Which layer of the Earth has the greatest temperature, pressure, and density? Core

Summary The earth is layered with a lithosphere (crust and uppermost mantle), convecting mantle,

Summary The earth is layered with a lithosphere (crust and uppermost mantle), convecting mantle, and a dense metallic core. Pressure, temperature, and density increases as depth increases. http: //www. learner. org/interactives/dynamice arth/structure. html

Mr. Lee’s Layers of the Earth Rap

Mr. Lee’s Layers of the Earth Rap