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Weather Review
| Question | Answer |
|---|---|
| What is the atmosphere? What are the layers of the atmosphere in order? | The gasses that surround a planet. 4 layers troposphere*ozone layer*, stratosphere, mesosphere and thermosphere |
| How did the atmosphere form? | formed mainly from gasses spewed from volcanoes |
| What is air pressure? Does air pressure increase or decrease the closer you get to Earth? Why? | force air molecules push down on surface.increases the closer you get to earth. has more pressure |
| What gases make up the atmosphere? | nitrogen, oxygen,and carbon dioxide |
| What are some ways air pressure affects human life? | they affect people who live higher altitudes and have a lack of air pressure |
| What creates wind? What does density and temperature have to do with it? | the movement of air. warm low density air rises low pressure, cool high density high pressure |
| What are the 5 types of global winds? Be able to label them on a map! | trade winds, ITCZ, horse latitudes, westerlies, and polar easterlies |
| How are weather and climate different? | weather reflects short-term conditions. climate -average weather for an extended period of time at a certain location |
| What is an air mass? How is it different from a front? | large body of air similar properties. front-borderline between two air masses |
| What is the symbol for a cold front? Warm front? Stationary front? Occluded front? What kind of weather do you get with each front? | cold front: long line 3 down pointed triangles, warm front: long line:3 round half circles, stationary front: long line 2 half circles up and 1 upside down triangle, occluded front: long line 2 half circles above 1 triangle in middle upw |
| What is humidity? What does 100% relative humidity mean? | the amount of water vapor or moisture in the air. it means rain |
| How do clouds form? | warm air rises into the atmosphere and cools |
| What are the three main types of clouds? Draw a picture of each. | cirrus clouds, cumulus clouds, and stratus clouds |
| What are mammatus clouds? Fog? Contrails? Lenticular clouds? Nimbostratus clouds? Draw a picture of each. | mammatus-sagging, pouch-like clouds fog-stratus clouds that are heavy with water vapor it condenses on ground lenticular- look like flying saucers or stacks of flat circles Nimbostratus-produces light to heavy rain contrails- condense w |
| How do thunderstorms form? What kind of clouds do thunderstorms come from? | forms by moisture, rising unstable air, and lifting mechanism to provide the nudge. forms cumulonimbus clouds |
| How does hail form? How is hail like an onion? | formed by water in the cloud freezes onto dust or dirt |
| What causes lightning? What causes thunder? | lightning-caused by exchange of electricity between two opposite charged surfaces. thunder-caused when a cold front meets a warm front cumulonimbus cloud forms |
| How can you tell how far away a thunderstorm is located? What should you do to stay safe in a thunderstorm? | count 5 seconds between seeing lightning and hearing thunder safety- away from metal- stay from tall structures |
| How do tornadoes form? What kind of clouds do tornadoes form from? Where do most tornadoes occur? | wind travel 2 different directions rolling motion turned into a column by strong air in cumulonimbus cloud air begins to spin within column forms a funnel cloud. occur in tornado valley |
| How do we rate how strong tornadoes are? What is the strongest? Weakest? What is the strongest tornado we’ve had in North Carolina? | tornadoes are ranked from EF0(weakest) to EF5(strongest). tornado in anson and richmond counties on Februray 19,1884 |
| What’s the difference between a tornado warning and a watch? How do you stay safe in a tornado? | tornado watch: conditions are right for a tornado, be aware. tornado warning: tornado was spotted take cover. get to the lowest room of the house, stay from glass window/sharp objects. get in a bathtub/under mattress |
| How are hurricanes formed? How is a hurricane different from a tornado? | warm air above the water provides energy and makes clouds. tornadoes occur over land hurricanes form over the ocean |
| How are hurricanes named? What happens to the names of really destructive hurricanes? | named alphabetically every year. they are retired if they are really destructive. |
| How do we rate how strong hurricanes are? What is the strongest? Weakest? | ranked from tropical depression(weakest) to category 5(strongest). |
| Why do hurricanes die out over land? | hurricanes require evaporation from the warm ocean surface in order to survive |
| What is the eye of the hurricane? How do you stay safe in a hurricane? How often do we have hurricanes in North Carolina? | the very middle of the hurricane is extremely calm. have emergency plan. if being told to evacuate in advance do so, stay from down power lines. ever so often |
| What are hurricane called in Pacific, Indian, and Atlantic Ocean? | pacific: typhoons, atlantic:hurricanes, indiana:cyclones |
| How do blizzards form? What are the 3 main things they require for formation? | cold, dry canadian air moves south and mixes with warm moist air mass moving north from gulf of mexico |
| Briefly describe the 4 blizzards we discussed in class. | 1927 blizzard- 20 inches of snow in parts of central NC 1980 blizzard- areas had 22-24 inches of snowfall 1993 blizzard- NC received 8 inches of snow, higher elevation 24 inches of snowfall 1996 blizzard-city asheville overnight snowfall 20 inches |
| What is barometric pressure? What instrument is used to measure it? | measurement of air pressure in atmosphere. barometer |
| What kind of weather does high air pressure bring? Low air pressure? | fair settled weather, below 29.80 in Hg |
| What are isobars? What do they tell you on a map? What do they have to do with wind? | line drawn on weather map connecting points of equal pressure,tells about sea level. |
| What direction does weather generally move across the USA? | west to east |
Created by:
K4Y
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