| A | B |
|---|
| weather | the condition of the air outdoors, such as temperature, cloud cover, windspeed and rainfall |
| climate | the usual weather in a place |
| humidity | water vapor in the air |
| precipitation | water falling to the surface of the Earth in the form of rain, hail, sleet, or snow |
| front | the place where an air mass meets another air mass |
| air mass | a large pocket of air |
| air pressure | the weight of the air pressing on everything in the environment |
| cloud | a visible mass of water or ice droplets above the ground |
| temperature | how hot or cold something is |
| data | pieces of information |
| humidity | the amount of water vapor in the air |
| barometer | a device that is used to measure air pressure |
| weather map | a map that uses symbols to show the weather conditions over a large area |
| warm front | the location where a warm air mass is replacing a cooler air mas |
| cold front | the location where a cold air mass is replacing a war air mass |
