| A | B |
|---|
| What causes weather? | The energy from the sun- forms clouds, rain, heat energy |
| What occurs at fronts? | Cloudiness, precipitation and storms |
| What travels from east to west? | the sun (west to east-> weather fronts) |
| What is air mass? | a large body of air that has properties similar to the part of earth's surface over which it develops (cool/moist, cold/dry, warm/moist, hot/dry) |
| What causes the grass to be wet in the morning? | Dew point changes with the amt. of water vapor in the air, which will condense into a liquid or form ice crystals- |
| Describe stratus clouds | Stratus clouds usually form at low altitudes and may be associated with fair weather or rain or snow. |
| Describe cirrus clouds | Cirrus clouds appear fibrous or curly they are high thin white feathery clouds made of ice crystals |
| What is a front? | A front is a boundary between two air masses of different density moisture or temperature. (the area where two air masses meet but do not mix ) |
| What is a violent wind that travels in a path called? | Tornado |
| What does a meteorologist study? | weather |
| What is the dew point? | The temperature at which air is saturated and condensation forms. |
| What is relative humidity? | A measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature. |
| What happens to form a tornado? | In severe thunderstorms wind at different heights blows in different directions and at different speeds. This difference in wind speed and direction called wind shear creates a rotating column parallel to the ground. |
| What are occluded fronts? | Involves three air masses of different teperatures> colder air. cool air. and warm air. when there are 3 air masses that create 2 fronts |
| What shows weather at a specific location? | A station model |
| What type of precipitation occurs when water vapors freeze? | snow |
| What are isobars? | a line connecting points on a line with the same air pressure |
| What does it mean when it says: high pressure is good weather? | If a high pressure zone moves in from the south, the weather is usually warm and clear in the summer. However, a high pressure zone originating from the north will usually bring cold weather in the winter months |
| How does sleet form? | Sleet is formed when ice crystals fall as rain that freeze before it hits the ground |
| Describe cumulus clouds | Cumulus clouds are puffy clouds that sometimes look like pieces of floating cotton. The base of each cloud is often flat and may be only 1000 m (330 ft) above the ground. The top of the cloud has rounded towers. When the top of the cumulus resembles the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward, and they can develop into a giant cumulonimbus, which is a thunderstorm cloud. |
| Low pressure creates what type of weather? | Low pressure systems are associated with the formation of storms and, potentially, cyclones and hurricanes |
| What does an isotherm do? | An isotherm map shows lines in between which the temperature is equal. Iso means equal, and therm means temperature, as in thermostat. |
| What is the most powerful storm? | 1 |
| Snow | when the air is cold water vapor forms snow flakes |
| cloud | warm moist air forms clouds: collection of millions of tiny water droplets or ice crystals |
| fog | when air is cooled to its dew point close to the ground it forms a stratus cloud called fog |
| relative humidity | Relative humidity is a measure of the amount of water in the air compared with the amount of water the air can hold at the temperature it happens to be when you measure it. |
| sleet | Sleet is formed when ice crystals fall as rain that freeze before it hits the ground |
| areas of low pressure | Low pressure systems are associated with the formation of storms and, potentially, cyclones and hurricanes |
| areas of high pressure | If a high pressure zone moves in from the south, the weather is usually warm and clear in the summer. However, a high pressure zone originating from the north will usually bring cold weather in the winter months |
| dew point | • the temperature at which the water vapor in the air becomes saturated and condensation begins |
| hail | precipitation in the form of lumps of ice- water freezes in layers around a small nucleus of ice. Hailstones form when strong winds blow raindrops back upward to the top of where the temperature is freezing. Then, the raindrops freeze into small pieces of ice. This process might happen several times where many layers of ice may build up. Once the hailstones are too heavy and the wind can blow them back up, the hail falls to the ground. |
