Water in atmosphere
Air with a relative humidity of 100 percent is what?
Saturated
A funnel-shaped storm that spins is a _______.
Tornado
The temperature at which air must be cooled to reach saturation is the ________________.
Dew Point
A cloud that forms near the ground is called what?
Fog
Weather scientists are called?
Meteorologists
Water vapor is water in the form of ___________.
gas
Describe what the weather is like in the eye of a hurricane.
Calm
Air pressure is measured in what unit of measurement?
Millibars
Air masses that form over water are _________.
Moist
The forward edge of a warm air mass is a __________.
Warm Front
The process by which plants give off water vapor into the air is ____________.
transpiration
When giant storm clouds give off electricity, what forms?
Lightning
Air has more capacity to hold water at what temperature? (2 degrees Celsius or 25 degrees Celsuis)
25 degrees Celsius
Light, feathery clouds made up of ice crystals are called ______________.
Cirrus
The two main forms of precipitation are _________ and ___________.
Rain and Snow
The amount of water vapor in the air is called ____________.
Humidity
A device used to measure precipitation.
Rain Gauge
Relative humidity is measured with an instrument called _____________.
Psychrometer
Clouds are formed by the process of _______________.
Condensation
On a weather map, what does "L" and "H" stand for and what does each of them mean.
L= Low
H= High
Low means low air pressure in that area and High means high air pressure in that area.
Why does high humidity make warm weather more uncomfortable for people?
Describe what each of the three cold fronts look like on a map.
Stationary: line with both triangles and and circles on the top side of the line
Cold: line with only triangles on bottom part of the line
Warm: line with only circles on the top part of the line
What are the five major things that are shown on a weather map?
-temperature
-cloudy or not
-highs/lows
-precipitation
-fronts
What is the difference between weather that occurs at a warm front and weather that occurs at a cold front?
Warm front: cirrus clouds form as a warm air mass gently rises over a cold air mass and cools
Cool front: cold air mass pushes underneath a warm air mass. Differences in pressure causes gusty winds and rain
A warm, dry air mass forms over _________ ___________ areas.
Tropical Land Areas