Air Masses
Severe Weather
Climates
Weather Tools
General Weather
100
Name the four air masses
Maritime Polar-Maritime Tropical Continental Polar-Continental Tropical
100
Lightening is caused when __________ electrical currents in the sky try to meet _________electrical currents on the ground.
negative-positive
100
Climate is what the weather is like in an area over a short period of time. True or False
FALSE
100
What does a big letter L stand for on a weather map?
An area of Low Pressure
100
How many layers are in the Earth's atmosphere?
5 Layers
200
Continental air is (wet or dry) Maritime air is (wet or dry)
Dry Wet
200
True or False- You should always board up your windows if you hear a tornado siren.
False
200
How can climates change? (name 1 way)
burning coal and gasoline, volcanoes, methane,
200
What happens to air pressure as you move up in the atmosphere?
Air pressure goes down as you move up
200
Name the 3 kinds of fronts
Cold, Warm, Stationary
300
What causes precipitation at fronts?
Rising Warm Air
300
Name the three stages of how a thunderstorm forms:
1. Air moves up 2. Air is mixed 3. All air moves down
300
If a scientist finds a fossil of a fish in the Arizona desert, what does this tell us about that area?
There was once a lake or river there
300
What is an anemometer?
Measure wind speed
300
A _______ _________ is called a tornado if it touches the ground
Funnel Cloud
400
Describe what the weather is like during a time of low pressure
Bad, rainy, stormy, cloudy
400
What weather instrument that some people have in their house would best tell you that a storm is coming.
Barometer
400
Bodies of water warm and cool more slowly than land. What is this called by us?
The Lake Effect
400
What amount of time would a forecaster have to look at to understand the climate of an area? A-Many Weeks B-Many Months C-Many Years D-Many Centuries
C-Many Years
400
Wind occurs when as air moves from an area of _______ pressure to and area of _______ pressure
High to Low
500
Most weather happens in what area of the atmosphere?
Troposphere
500
Which situation would be MORE likely to produce rain or snow. A cold front pushing a warm front OR A warm front pushing a cold front
A cold front pushing a warm front
500
Explain why there is more precipitation on the east side of the Rockies (Colorado) than on the west side (California)
Water from the ocean hits the side of the mountain, forms clouds and rains. Very little moisture reaches the other side.
500
Convection currents form when air ____________ are ___________
Temperatures----Different
500
Front-Pressure-Air Mass. For a warm, dry, clear sunny day...what would you need for that to happen?
Warm Front High Pressure Continental Tropical Air Mass
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