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40 Cards in this Set

  • Front
  • Back
Temps are extremely high and there are few air molecules here.
Thermosphere
Temperature decreases from the bottom to the top because the air is thin and meteors burn up here.
Mesosphere
Temperature increases from the bottom to the top because the ozone that is present here absorbs energy from the ultraviolet rays.
Stratosphere
Most life on earth exists here. This is also where all weather occurs. It contains about 3/4 of the atmosphere by weight.
Troposphere
A molecule made of 3 oxygen atoms.
Ozone
A large body of air that forms in the troposphere.
Air mass
List 3 of the most important gasses needed for life.
Oxygen, carbon dioxide, and Nitrogen
List 2 factors that affect the amount of energy the Earth's surface receives from the sun.
1. The angle in which the sunlight hits the earth.
2. Light loses its energy as it travels through the air.
The weight of air pressing down on an area. It is the greatest at the surface of the Earth with 7 major air masses in the US.
Air pressure
A comparison of the actual amount of moisture.
Relative humidity
The border between 2 air masses that collide.
Front
The boundary that forms between a cold front and a warm front and is recognized by cirrus clouds.
Warm front
The area where a cold air mass replaces a warm air mass.
Cold front
A boundary where a warm and cold air mass meet, but do not move.
Stationary front
The front that takes place when a cold front overtakes a warm front.
Occluded front
What causes wind belts?
The uneven heating of the Earth.
What type of air mass moves when 2 different air masses collide and why?
The warmer air mass moves because the cool air mass is more dense.
What does a change in air pressure signal?
That a new air mass has arrived, which brings new weather with it.
A prediction of what the weather will be like in the future.
Forecast
An arrangement of symbols and numbers that show the weather conditions recorded at a weather station.
Station model
Information about fronts and about centers of high and low pressure.
Surface map
Records data about temperature, air pressure, and humidity.
Weather balloon
Shows data about recent weather conditions across a large area.
Weather map
An instrument used to measure wind speed.
Anemometer
The temperature at which water vapor in the air will condense.
Dew point
An instrument used to measure air pressure.
Barometer
List 4 instruments that are used in forecasting the weather.
Thermometer, barometer, rain gauge, and anemometer.
What type of weather conditions does a Doppler record?
It measures wind speeds and precipitation and is very useful in detecting tornados.
What type of weather conditions does a satellite record?
It measures humidity and temperature and can even detect fog forming at night.
They are very useful for tracking the paths of hurricanes.
A very strong storm with lots of rain, thunder, and lightening.
Thunderstorm
A large, spiraling storm system.
Hurricane
An intense windstorm that often forms within a severe thunderstorm.
Tornado
A low pressure area with constant winds of 63 km/hr.
Tropical storm
What are the conditions in the eye of a hurricane?
The winds drop and there is no rain. It is calm and quiet in the eye of a hurricane.
What are the conditions in the eye wall of a hurricane?
The eye wall is the most intense part of the storm. The air is warm and wet in the eye wall.
What part of a hurricane is responsible for the largest number of deaths?
storm surge
What kinds of storms cause tornados?
Thunderstorms
List some tornado safety rules.
1. Stay inside.
2. Find a room on the lowest floor (a basement is best).
3. Stay under a staircase, bed, or strong table or desk.
4. If you can't get inside a building, lie in a ditch with your hands over your head.
5. Never stay in a car or other vehicle.
List some hurricane safety rules.
1. Find a shelter if your home is not sturdy or on high ground.
2. Tie down any loose objects outside if you can not bring them in.
3. Board up windows.
4. Have enough food and supplies to last 2 weeks.
5. Listen to your radio to learn when it is safe to go outside.
List some thunderstorm safety rules.
1. Stay inside.
2. Don't touch faucets, plumbing pipes, electrical outlets, or telephones with cords unless it is an emergency.
3. If you can't get indoors, stay in your car as long as you do not touch any of the car's metal parts.
4. If you are outside, crouch down as low as you can.
5. Do not take shelter under a tree.
6. If you are in a boat, get to the shore as you see any signs of a storm.