4 Spheres
What are the four spheres?
Geosphere, Atmosphere, Biosphere, Hydrosphere
What layer of the atmosphere is the troposphere?
The first layer.
What is the densest layer of the atmosphere?
Troposphere
Why is the troposphere the densest layer of the atmosphere?
Because gravity pulls most air molecules into this layer.
Which layer has weather?
Troposphere
Has all the water in it.
What is the hydrosphere
The ozone layer is in what layer of the atmosphere?
The Stratosphere.
What are the two most common gases in the atmosphere?
Nitrogen and oxygen
In the stratosphere, density and ______ both decrease with altitude.
Air Pressure
Meteors burn up in this layer, which acts as a shield for Earth.
The mesosphere
Includes all rocks on earth.
What is the Geosphere?
Where is the mesosphere located?
It is in the middle or third ayer of the atmosphere.
This protects the Earth from excessive heat and uv radiation.
The ozone layer.
Which layer does temperature increase as altitude increases?
Stratosphere
Why does the ozone layer heat up the stratosphere?
The ozone molecules trap and reflect heat from the sun into the stratosphere.
Includes all ice and water on Earth.
What is the hydrosphere?
Who created the name for troposphere?
Leon Phillipe Teisserenc de Bort.
What is the avergae distance of the troposphere?
12km or 7.5miles
Why do density and air pressure decrease with altitude in the atmosphere?
There are less air molecules and they are spread out further in the atmosphere at higher altitudes.
What keeps the atmosphere from floating away?
Gravity
The air all around us.
What is the atmosphere?
Where is the coldest part of the mesosphere?
The top of the mesosphere.
What gives the mesosphere its heat?
The stratosphere and ozone layer.
Which layer does density increase as altitude increases?
None of the layers.
List the stratosphere, mesosphere and troposphere from least dense to most dense.
Mesosphere, Stratosphere, and Troposphere