The Atmosphere
Precipitation
Storms
Clouds
Vocabulary
100
The atmosphere is mainly a mixture of what 2 gases?
nitrogen and oxygen
100
What is the most common kind of precipitation?
Rain
100
Name 2 kinds of weather fronts & their symbols
Cold Front ___________ Warm Front __________
100
What kind of clouds is this?
Cirrus
100
Any form of water that falls from the sky is known as _________.
Precipitation
200
As the altitude increases, what happens to the air pressure?
it decreases
200
What are ice pellets larger than 5mm that form during a thunderstorm called?
Hail
200
What is the symbol for a warm front?
___________________
200
What kind of clouds produce snow? A) cumulus C) cirrus B) cumulonimbus D) stratus
D) stratus
200
In which layer of the atmosphere does weather happen?
Troposphere
300
What is ozone & what atmospheric layer contains it?
3 oxygen and it is found in the stratosphere
300
The weather around the world is different because the Earth is heated _________. a) evenly b) rapidly c) steadily c) unevenly
unevenly
300
When the sun heats & evaporates large amounts of ocean water it can form a _____________? a) a flood b) hurricane c) a tornado
Hurricane
300
What are the 3 main types of clouds?
Cirrus, Stratus, Cumulus
300
Water vapor in the air becomes liquid in a process called ______.
Condensation
400
Name the 4 main layers of the atmosphere in order from Earth.
troposphere, stratosphere, mesosphere, thermosphere
400
What instrument is used to measure rain?
Rain Gauge
400
In the middle of the US, air masses can come together to form a _____.
Tornado
400
What are clouds that form at or near the ground called?
Fog
400
Long periods of little or no precipitaion is called a ___________.
Drought
500
Convection currents happen because ________air sinks & _______ air rises.
cold air sinks and warm air rises
500
Name the 5 common types of precipitation.
rain, sleet, freezing rain, hail, snow
500
Another name for a thunderhead cloud is a __________________.
Cumulonimbus
500
What are layered clouds that can cover much of the sky called?
Stratus
500
What is the % of water vapor in the air compared to the amount it can hold called?
Relative humidity
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