Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
100

The troposphere is which layer of the atmosphere?

The 1st layer

100

The stratosphere is which layer in the Earth's atmosphere?

The second layer

100

The mesosphere is which layer?

The third layer of the Earth's atmosphere.

100

True or False: The thermosphere is the coldest layer.

False

100

The Greet word "exo" means?

outside

200

How far is the troposphere from the ground and how high does it extend to?

4-6 miles and extends up as high as 12 miles from the ground.

200

The stratosphere starts around how many miles up from the Earth? 

7 miles

200

Which two layers is the mesosphere in between?

The Thermosphere and Stratosphere.

200

The thermosphere can extend as high as how many miles?

621 miles

200
What machine orbits the earth in the exosphere?

Satellites

300

What does the Greek word "tropos" mean?

Change

300

What does the word strato sphere mean?

Means layer around the Earth.

300

How high does this layer extend to?

50 miles

300

What does the thermosphere protect Earth from?

Cold temperatures in outer space AND radiation from the sun.

300

The exosphere is made up of mainly what two gases?

helium and hydrogen

400

Why is most life on Earth found in the troposphere?

Because it has oxygen.

400

Why is the ozone layer important?

It makes sure the right amount of UV radiation from the sun hit the Earth.

400

Why is it difficult to fully study the mesosphere?

Because it's too high for planes and too low for satellites.

400

Another word for northern and southern lights.

Auroras

400

How are satellites able to orbit the Earth in the exosphere?

Because there is not much friction or resistance to disturb or bother the satellite.

500

How is the troposphere heated? Explain in your own words.

Logical explanation: Sunrays heat the ground and ocean and then the heat bounces back into the troposphere.

500

True or False: There is not much oxygen at the top of the stratosphere to breathe.

True

500

What are shooting stars?

Meteors burning up in the mesosphere.

500

Why do temperatures reach up to almost 3,700 degrees in thermosphere?

Logical response: It is the hottest layer OR therm means to contain heat OR it is supposed to protect from cold temperatures in outer space.

500
True or False: The exosphere is the ONLY layer of defense against sun rays, meteors, asteroids and other dangers in space.

False: The mesosphere, stratosphere and thermosphere also protect against some of these things.

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