science that I think is important! I am awesome (morgan is not)BTW, this is much better than Angela's, because it has more terms, and it is easier and harder at the same time!!!!!!
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112 terms
Terms | Definitions |
|---|---|
 negative, positive | lightning occurs when the ________ charges at the bottom of the cloud are attracted to the ___ charges in the ground |
| expand | thunder occurs because lightning forces the air around it to ________ quickly |
| hurricanes and tornadoes | _______ are very large storms with very low pressure at the center |
| equator | they form over tropical oceans-near the _______ (the water has to be 80F or warmer) |
| counterclockwise | winds in the northern hemisphere spiral ________________ |
| 75 | when the winds reach the speeds of ____ mph the storm is a hurricane |
| low-pressure | tornadoes and hurricanes both have a ________ center |
| land, water | tornadoes form over _____ while hurricanes form over ____ |
| smaller | tornadoes are _____ than hurricanes |
| stronger | the winds in a tornado are much _____ than a hurricane |
| longer | hurricanes last much _____ than tornadoes |
| predicted | hurricanes can be more easily ____ than tornadoes |
| category 1 | hurricane winds 74 to 95 mph signs, tree branches, and power lines down |
| category 2 | hurricane winds 96 to 110 mph large signs and tree branches down |
| category 3 | hurricane winds 111 to 130 mph minor building damage and trees down |
| category 4 | hurricane winds 131 to 155 mph total destruction to doors and windows |
| category 5 | hurricnane winds more than 155 mph buildings and roofs destroyed |
| dry cold, warm moist | tornadoes form where _____ ______ and _____ ______ air masses mix |
| narrow | a tornado follows a ______ path |
| evening | tornadoes usually form in the ________ (time o day) |
| 300 | the winds at the center of the tornado can reach up to ____mph |
| midwest south | most tornadoes form in the _____ or ______(where) |
| waterspouts | tornadoes that form over water are called ______________ |
| coriolis effect | the _____ ______ causes winds to spiral counterclockwise in the northern hemisphere |
| heat | as water vapor condenses, _____ is realeased |
| faster | the lower the pressure, the _______ the winds blow towards the center |
| 400 | hurricanes can grow to more than _____ miles in diameter |
| 6 to 20 | Just north of the equator, global winds move hurricanes west to northwest at about _____ to _____ mph |
| increase | as winds move away from the equator, their speeds tend to _______ |
| surge | the storm ____, which is a great rise of the sea shore along a shore, causes the most destruction |
| air pressure | the cause of the storm serge is _____ ______ |
| Africa | hurricane Fran came from the coast of _______ |
| 1996 | hurricane fran was in ______(date) |
| 16 | hurricane fran moved ____ mph |
| west, northwest | hurricane fran moved from ____ to ___________(direction) |
| north carolina | 2 states that fran hit were ______ ______ and virginia |
| die | when hurricanes move over land they _____ (angela, they also come back!!! LOL) |
| larger | hurricanes are much _____ than tornadoes |
| 100 | hurricanes are more than ____ miles wide |
| summer fall | most hurricanes start in the ______ and _______ (seasons) |
| tropical depression | a ______ ___________ is the first step in a hurricane |
| tropical storm | a _____ ____________ is the second step in a huricane |
| warm | hurricanes grow if they stay over ________ water |
| a week | hurricanes can live for more than _________ |
| names | we give hurricanes ______ to tell them apart |
| eye | the _______ of a hurricane is where there are no clouds so it looks like a hole if you are in space |
| calm sunny | the eye of a hurricane is ________ and _________ |
| tornadoes | thunderstorms in a hurricane can make small ___________ |
| water cycle | hurricanes are part of the ______ ________ (a cycle) |
| air | the winds and rains in a hurricane clean the ____ |
| funnel shaped | a tornado is a rapidly whirling_________ _______ cloud that reaches down and touches the ground |
| thunderstorms | tornadoes are most likely to occur when ________ are likely |
| warm | tornadoes form when the ground is _______ |
| great plains | tornado alley is in the _______ _______ regions and the mississippi valley |
| kansas, texas, iowa | tornadoes usually form in ______, oklahoma, ______, nebraska, _______ |
| 1,000 | usually _______ tornadoes are reported each year |
| F0 | F scale, winds 40-72 light damage, branches off of trees and minor roof damage |
| F1 | F scale, winds 73-112 trees snapped, mobile houses moved, roof damage |
| F2 | F scale, winds 113- 157 mobile homes demolished, trees uprooted, strong homes unroofed |
| F3 | F scale, winds 158-206 trains over turned, cars lifted, strong homes walls blown away |
| F4 | F scale, winds 207-260 houses leveled, cars thrown 300 yards or more |
| F5 | F scale, winds 261-318 strong homes blown away, missiles generated |
| static electricity | when the air going up rubs against the air going down, _______ ________ builds up |
| march may | usually tornadoes are in the months of ______ to ______ |
| fujita | the _____ scale is what measures tornadoes |
| common | thunderstorms are the most ________ kind of storms |
| cold front | thunderstorms usually form in the warm air just ahead of a _____ _______ |
| REVIEW YOUR FLASHCARDS ON STAGES!!! | REVIEW YOUR FLASHCARDS ON STAGES!!! |
| 100 | a typical lightning strike carries about ___ million volts of electricity |
| 2-6 | most lightning strikes about _______ miles long |
| 500,000 4 | the temprature of a lightning strike can be _______ degrees, or about ___ times hotter than the temp. of sun |
| convection | when air bubbles upward over warm ground we call it ____ |
| water vapor, humidity, moisture | 3 terms for water in the air are _______ ____, _______ and _______ |
| afternoon | the best time to see a thunderstorm is in the ________, or when the air is the warmest |
| cooling | thunderstorms help by _________ down the temp. |
| down burst, micro burst | If the down draft is strong enough to knock over trees, it is called a _____ __ or ______ ______ |
| flash floods | when floods start fast they are called _____ _______ |
| tornado | a violent whirling wind that moves across in a narrow path |
| hurricane | a very large, swirling storm with very low pressure at the center and forms in the water |
| coriolis effect | the curving of the path of a moving object caused by earth's rotation |
| wind | air that moves horizontally |
| downdraft | a downward rush of air caused by the falling of rain during a thunderstorm |
| updraft | a upward rush of heated air during a thunderstorm |
| spring and summer | when would u expect a thunderstorm? (seasons) |
| wind rubbing against itself making static electricity | what causes lightning? |
| lightning causes air to heat up and expand rapidly | what causes thunder? |
| afternoon | at what time of day are thunderstorms likely? |
| typhoon | a tornado formed in the pacific ocean |
| canada, gulf | the cold, dry air comes from _______ while the warm, moist air comes from the ______ |
| updrafts | in the first stage of a thunderstorm, _______ move warm air upward in a cloud |
| heavy rain | when there is to much water in a thunderstorm cloud, it falls as _______ ________ |
| downdrafts, static electricity | falling rain causes _______ in a thunder cloud, building up _____ _______ |
| funnel | as the air curves into a spin, the tornado gets stronger, and a ________ forms |
| great plains, mississippi valley | the regions of the U.S. where tornadoes are most likely to occur are: _________ ________ and ___________ ___________ |
| low-pressure | a hurricane is a large swirling storm with an area of very ___________ at the center |
| evaporation | a low-pressure center forms in a hurricane because of strong heating and lots of _______ from the surface of warm ocean water |
| ring | when the wind nears the center, it moves upward and forms a _______ of tall thunderstorms |
| greater | a can is crushed when pressure outside the can is ______ than the pressure inside |
| inverting | when the can was filled with water vapor, you cooled it by _______ it in water. then it condensed back to a liquid |
| implosion | the sudden collapsing of an object towards the center is called an ______ |
| neutrons | electrons have _________ |
| 50-100 | there are __________ cloud to ground lightning strikes every second |
| 1992 | hurricane Andrew was in _______ (date) |
| 15-30 | Andrew cost ________ billions of $$$$$ |
| watch | a tornado ______ indicates that a tornado is possible in your area |
| counterclockwise | In the formation of a hurricane, clusters of storms are pulled into a spiral moving ____________________(direction) |
| greater | the water vapor in the can condensed into a liquid, and this made air pressure on the outside _____than the inside |
| true | t/f: tornadoes occur most often when the air is warm and moist |
| false | hurricanes have wind speeds that are faster than most tornadoes(t/f) |
| National Hurricane Center | the ________ _________ _________ is part of the National weather service and tracks tropical storms and hurricanes |
| 2005 | Hurricane Katrina hit in _______ (yeaR) |
| storms in a cluster | hurricanes begin as _____ ___ ____ ______ |
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