Earth's Systems

Earth's Systems Review

by Luna Beale

Welcome back!

​How was your winter break?

​What did you learn about last week?

​What was one fact you remember from last week?

Multiple Choice

How many spheres does Earth have?

• 1

• 2

• 3

• 4

Multiple Choice

Which sphere contains all living things?

• Atmosphere

• Geosphere

• Biosphere

• Hydrosphere

Multiple Choice

Which sphere contains all rocks?

• Atmosphere

• Geosphere

• Biosphere

• Hydrosphere

Multiple Choice

Which sphere contains all water?

• Atmosphere

• Geosphere

• Biosphere

• Hydrosphere

Multiple Choice

Which sphere contains all gasses?

• Atmosphere

• Geosphere

• Biosphere

• Hydrosphere

​4 Spheres

​Geosphere: solid Earth

• ​sometimes called lithosphere

​Atmosphere: air and gas

Hydrosphere: water

​Biosphere: life

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​NEW: CRYOSPHERE

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This is the frozen portion of the hydrosphere.

Multiple Choice

Which layer of the Earth is the layer that we live on?

• Outcore core

• mantle

• inner core

• crust

​Layers of the Earth

​The geosphere is made up of layers.

​

We live on the surface of Earth, which is called the crust.

​

​Below the surface, it is incredibly hot. Some rock is even melted.

​Interactions between spheres

​You also learned about interactions between spheres.

​

​Let's see if you can identify which two spheres are interacting in the following example.

Multiple Choice

A rabbit burrowing underground is interaction between which two spheres?

• geosphere and atmosphere

• hydrosphere and atmosphere

• biosphere and geosphere

• biosphere and hydrosphere

Multiple Choice

An animal breathing is an interaction between which two spheres?

• atmosphere and geosphere

• biosphere and atmosphere

• biosphere and geosphere

• biosphere and hydrosphere

​Interactions between spheres

​All four spheres interact with each other, but the biosphere, that is all life on Earth, would not exist without the other 3 spheres.

​

​We are going to first learn about the atmosphere and how it supports life on Earth.

Multiple Choice

What keeps the atmosphere around Earth?

• Pressure from the sun

• Earth's gravitational pull

• Density of gas

• Humans and animals

​Gravity!!

​The atmosphere, which is a collection of different gasses, formed around Earth because of Earth's gravitational pull.

​

​Because of gravity, Earth pulls gas toward it.

Multiple Choice

How many layers of the atmosphere are there?

• 2

• 3

• 5

• 7

​Atmosphere

​The atmosphere has 5 layers.

​

​The Ozone layer Is within the stratosphere and protects us from the sun's harmful rays.

​

​We will review more tomorrow, but let's see what you remember.

​

​Acrostic

​I would like a few volunteers to share the acrostic they created to remember the layers of the atmosphere!

​

Multiple Choice

Meteors and astroids are found in which layer of the atmosphere?

• troposphere

• stratosphere

• thermosphere

• mesosphere

Multiple Choice

Which of the following is the last layer before space?

• Exosphere

• stratosphere

• troposphere

• mesosphere

Multiple Choice

All of Earth's weather takes place in the...

• Exosphere

• stratosphere

• troposphere

• thermosphere

​Concept Map

​Next, you will create a concept map about the Earth's spheres.

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​Concept maps are based on a central topic (the big circle in the middle).

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​Each branch off of that circle is another sub-topic.