| A | B |
|---|
| relative humidity | amount of water vapor in the air compared to the maximum amount the air can hold at a given temperature |
| evaporation | change in state from a liquid to a gas |
| humidity | amount of water vapor in the air |
| front | boundary between two air masses |
| precipitation | water falling from the sky |
| isobar | lines connecting points of equal pressure |
| meteorologist | person who studies weather |
| condensation | change in state from a gas to a liquid |
| windd | air moving parallel to the ground |
| air mass | large body of air that takes on the characteristics of the part of Earth over which it formed |
| dew point | temperature at which the air is saturated and condensation forms |
| weather | state of the atmosphere at a specific time and place |
| warm front | slow weather changes, precipitation lasts for hours or days |
| cold front | rapid weather changes, precipitation lasts for a short while |
| low pressure area | stormy weather |
| high pressure area | fair weather |
| cumulus clouds | fair weather |
| cirrus clouds | precipitation in a day or two |
| stratus clouds | bring precipitation |
