Review Earth & Atmosphere Layers

Review Earth &

Atmosphere Layers

Today, I will review the Earth & Atmosphere layers and prepare​ for my Quiz tomorrow.

​EARTH COMPOSITION

​The Earth is divided into three layers- the crust, the mantle, and the core.

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​The less dense compounds make up the crust and the mantle.

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The more dense compounds make up the core.

​THE CRUST

​The crust is the outermost layer and the thinnest

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 There are two types of crust: continental and oceanic.

​THE MANTLE

​The layer of the Earth between the crust and the core.

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The mantle is much thicker than the crust and contains most of the Earth’s mass (84%)

​UPPER MANTLE

​The Lithosphere: This is where tectonic plates are found

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

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Convection currents in the mantle cause movement. Movement of the asthenosphere moves tectonic plates.

​LAYERS WITH THE UPPER MANTLE

​THE CORE

​The Outer Core: The liquid layer of the Earth’s core and surrounds the inner core.

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The Inner Core: The solid, dense center of our planet.

Multiple Choice

The crust and the mantle are less dense than the core.

• True

• False

Multiple Choice

What are the 3 main layers of the earth in order?

• Core, Mantle, Crust

• Crust, Mantle, Core

• Crusty, Mantle, Crabby

• Mantle, Core, Crust

Multiple Choice

The tectonics plates are found on the Lithosphere.

• True

• False

Multiple Choice

What causes movement on the Asthenosphere?

• Convenction Currents

• The Inner Core

• Earthquakes

• Water

Multiple Choice

The Inner Core is

• Liquid

• Solid

• Gas

• Plasma

​LAYERS OF ATMOSPHERE

​Troposphere

​the layer of the atmosphere closest to the earth, in which the air moves in all directions.

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It is where most of Earth's weather takes place.

​Stratosphere

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The layer of the Earth's atmosphere that lies above the troposphere. It has very little water vapor and other gases present.

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OZONE LAYER forms here.

​Mesosphere

​The part of the atmosphere between the stratosphere and thermosphere in which the temperature decreases in altitude.

​Thermosphere

The highest level of the atmosphere​

​Ionosphere

Very active part of the atmosphere.

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It grows and shrinks depending on the energy it absorbs from the Sun.

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Auroras, Northern Lights occur in the ionosphere.

​Exosphere

​The outer region of the atmosphere.

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​Satellites orbit earth in the exosphere

Multiple Choice

The order of the layers of the atmosphere are:

• thermosphere, stratosphere, mesosphere, troposphere, exosphere

• stratosphere, troposphere, mesosphere, thermosphere, exosphere

• troposphere, stratosphere, mesosphere, thermospehere, exosphere

Multiple Choice

Which is the layer of the atmosphere closest to the earth

• troposphere

• stratosphere

• the sky

• mesosphere

Multiple Choice

The ozone layer is on the

• mesosphere

• stratosphere

• troposphere

• thermosphere

Multiple Choice

The part of the atmosphere between the stratosphere and the themosphere is the

• troposphere

• mesosphere

• exosphere

Multiple Choice

Meteors burn up it which layer of the atmosphere?

• mesosphere

• stratosphere

• thermosphere

• exosphere

Poll

How well do you understand this topic so far?

• I love it ❤️️

• I would like some more help 😕

• It's going well 🙂

• I don't understand it 🙁

Poll

What is something that will help you understand this an other lessons better?

• Some more examples

• More Quizzes

• Flashcards

• It's all good for now

Poll

Do you feel ready for a quiz tomorrow about Layers of the Earth & Layers of the Atmosphere?

• Yes

• No

• Maybe