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44 Cards in this Set

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The size at which water droplets in clouds become too large to stay suspended is _____.
0.2 millimeters
____ makes conditions on earth suitable for life.
atmosphere
___ is the amount of mass in a given volume of air. Or mass divided by volume.
density
In the composition of the atmosphere- __% is carbon dioxide.
0.0036%
Describe cumulus clouds.
dense, puffy, cottony looking
The ____ is the layer of gases that surround the earth.
atmosphere
___ is the force pushing on an area of surface.
presure
In the composition of the atmosphere- ___% in nitrogen.
78
Temperature at which air is saturated and condensation takes place is the ____.
dew point
In the composition of the atmosphere- __% is oxygen.
21
Air presure is measured with a ____.
barameter
In the composition of the atmosphere- ___% is argon
0.93%
A Low presure system is associated with...
rain
Describe cumulonimbus clouds.
tall, dark, associated with thunderstorms
What is the coldest part of the atmosphere? How cold can it get?
the outer mesosphere (-90 degrees Celcius)
____- warm air mass moves into cold air mass
warm front
What is an example of how oxygen is important for other processes?
burning fires
descibe Stratus clouds.
low-lying, gray, associated with light precipitation
___ is the middle layer of atmosphere(50-80km)
mesosphere
describe cirrus clouds.
thin, high whispy clouds, made of ice
____ is the inner lowermost layer where weather appears. It is 0-12 km
troposphere
_____- air masses have stopped moving.
stationary front
___ is the measure of thermal energy in the atmosphere.
temperature
How do we get nitrogen into our bodies?
bacteria converts the nitrogen to nitrates which plants use. We then consume the plants
Outer space with no definite boundaries is the ___.
Thermosphere
___- cold air mass moves into warm air mass forcing the warm air mass up rapidly.
cold front
___ is the area where the o-zone is located (12-50 km)
stratosphere
The thermosphere is divided into two parts the ____ and the ____.
ionosphere and the exosphere
___ is the measure of how much of available air space is filled with water vapor.
Relative Humidity
___- two cold air masses merge forcing the warm between them and off the ground.
occluded front
temperature is measured with a _____.
Thermometer
High Presure is associated with ....
1. clear weather
2. clockwise rotation
3. cool sinking air
____ also decreases with altitude.
density
What are the four types of precipitation?
rain, snow, sleet, hail
Realative Humidity is measured with a ____ or ____.
psychrometer, hygrometer
Which front is difficult to predict?
occluded front
Air presure decreases with _____.
altitude
___ are boundaries between 2 different air masses
fronts
What are the four layers of the atmosphere?
troposphere
stratosphere
mesosphere
thermosphere
____ air holds lots of water.
warm
___ is the amount of moisture in the air.
humidity
Low pressure systems move in a....
counterclockwise rotation
___ is the outermost atmosphere. It is about 80 km high.
thermosphere
Oxygen is necessary to get...
fuel from foods we eat in process of cellular respiration