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Stratosphere
Mesosphere
Troposphere
Thermosphere
100

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100
Planes fly in the stratosphere to avoid _________.
bad weather
100
In the mesosphere air temperature ____ with height.
decreases
100
The troposphere is the layer _____ to Earth.
closest
100
The thermosphere is the hot, _______ layer of air.
outermost
200

All the particles of air pressing down on the surface cause ____________?

Air Pressure

200
Temperature in the stratosphere ___ with height.
increases
200
The mesosphere is the _____ layer of the atmosphere. (not closest or farthest)
coldest
200
Almost all _____ happens in this layer
weather
200
I the thermosphere, temperature ____ quickly with height.
increases
300
Air pressure changes as you go _________ in the atmosphere.
Higher
300
The stratosphere contains most of the atmospheres _____.
ozone
300
What layer is the mesosphere in? (first, second, third, fourth)
third layer
300
Air temperature _________ as you go higher in the troposphere.
decreases
300
Temperatures high in the atmosphere an reach ______ of degrees celsius.
thousands
400
Air pressure is ____ as you go higher into the atmosphere.
Less
400
what is ozone?
a kind of oxygen
400
Could we live in the mesosphere?
no.
400
In the cup experiment why did the water not come out of the cup when it was flipped over?
There was more air pressure pushing up on the paper than there was water pushing down towards the ground.
400
oxygen makes up about _____ of the atmosphere.
1/5
500
Air takes up _____ and has _____.
space and weight
500
What does the ozone protect?
living things from the sun's harmful rays
500
What two layers are between the mesosphere?
the Thermosphere and the Stratosphere
500
We ___ in the troposphere and ___ its air.
live; breathe
500
The atmosphere formed _____ years ago.
millions
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