| A | B |
|---|
| When moisture condenses out of air and ralls to the ground as rain, snow, sleet or hail we are experienceing what? | precipitation |
| What is a large body of air that has the same properities as Earth's surface over which it develops? | air mass |
| What is a violent, whirling wind that moves in a narrow path over land? | a tornado |
| Wht are the high white, feathery clouds usually associated with fair weather? | cirrus clouds |
| If air containing moisture is cooled, the temperature at which the air is saturated and condensation forms is known as what? | dew point |
| High pressure air usually means good weather, why? | air's sinking motion makes it difficult for clouds to rise and form |
| What are the highest clouds? | cirrus clouds are the highest |
| Wne air holds all the water vapor it possibly can it is what? | saturated |
| At higher temperatures, air can hold ____ water vapor as compared to air at lower temperatures. | more |
| What is the measure of the amount of water vapor that air is holding compared to the amount that it can hold at a specific temperature? | relative humidity |
| What are the low, layered gray clouds that produce drizzle? | stratus |
| What forms where cold and warm air masses meet? | front |
| What is the line that connects points of equal temerature? | isotherms |
| What forms along fronts? | low pressure systems |
| When water droplets form around dust and become heavy enough to fall out of clouds what happens? | precipitation falls from the clouds |
| who forecasts the weather using data collected from many sources? | meteorologist |
| Lightning results from what? | a buildup of + a nd - electrical charges in clouds |
| Snow that melts in the air and then refreezes neaqr the ground becomes what? | sleet |
| Hurricanes form over what? | tropical oceans |
| An air mass that forms off the SE coast of the US is...? | warm and moist |
| Violent storms generally form along what kind of front? | a cold front |
| Water can form on surfaces at night when the air is clear because of what? | air near the ground cools to its dew point |
| Tornadoes often form from a type of cumulonimbus cloud called what? | a wall cloud |
| What interaction results in weather? | the interaction of air, water and sun |
| What are the thick puffy clouds called? | cumulus |
