OTS 6th grade WEATHER test

53 terms by victoriabigdelle 

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what are the 4 parts of the water cycle?

precipatation, condensation, evaporation, transpiration

what is humidity?

the amount of water vapor or moisture in the air

what causes "bad hair days"?

amount of humidity in the air

humidity____________ as water evaporates

__________=increses

what is relative humidity?

the amount of moisture that the air contains compared with the maximum amount it can hold at a particular temperature

what is saturated?

all the water that air can hold at a given temperature

what is dew point?

the temperature to which air must be cool to be completely saturated

how are dew point and condensation relaated?

condensation happens when the dew point is reached

what is a cloud?

a collection of millions of tiny water droplets or ice crystals

what are the different types of clouds?

cumulus, stratus, cirrus

what does CIRRO- mean?

high

what does ALTO- mean?

middle

what does STRATO- mean?

low

what are some characteristics of cumulus clouds?

puffy, white, flat bottoms, mean fair weather

what are some characteristics of stratus clouds?

form in layers,blocks out the sun, covers large areas of sky

what are some characteristics of cirrus clouds?

feathery, thin, found in high altitudes

what does NIMBO- mean?

precipatation might fall

what type of cloud is fog?

stratus

what is an air mass?

a large body of air that has smilar temperature and moisture throughout

what is a source region?

an air mass that gets its moisture and temperature characteristics from the area over which it forms

how are air masses characterized?

by moisture and temperature

what does m, c, P, T, stand for on an air mass map?

m=maritime P=polar
c=continental T= tropical

what type of air mass influences NJ?

maritime tropical and maritime polar

what are the different types of air masses that influence weather in north america?

continental polar and maritime polar

what is a front?

when two different air masses meet, a boundary is formed between them

what type of weather is found around a front?

cloudy and stormy weather

what are the 4 types of fronts?

cold front, warm front, stationary front, and occluded front

why arent there fronts in the tropics?

because only warm air masses exist there and fronts need cold and warm air

what is a thunderstorm?

small intense weather system producing strong winds, heavy rain, lightning, and thunder

how are thunderstorms created?

unstable atmosphere

what is thunder?

sound that results from the rapid expansion of air along the lightning strike

what is lightning and how is it created?

lightning is a large electrical charge that occurs between 2 oppositley charged surfaces

how are tornadoes produced?

small rotating columns of air that causes high winds speeds and low pressure

where do tornadoes mainly happen?

tornado alley in the midwest of usa

interesting info about tornadoes

75% of all tornadoes in the world happen in the USA

how are hurricanes produced?

group of thunderstorms with winds moving in 2 different directions

where are hurricanes usually found?

5°-20° north and south latitude over warm tropical oceans

what are some other names for hurricanes?

typhoons or cyclone

how do hurricanes stop?

they move to cold water

intersting info about hurricanes

most powerful storms on earth

how did El Nino get its name?

it occurs around christmas time

how are the sun and weather related?

sun fuels weather

what is a monsoon?

storm that has lots of rain and strong winds

what is a tropical storm?

a group of thunderstorms that is not powerful enough to be a hurricane

how big was the biggest piece of hail?

about 18 inches

what is a hailstone?

a piece of hail that has a different shape and size

where is hail alley?

stretches from southeast texas to canada

why would people forecast the weather?

...

what are the various instruments scientists use to measure the aspects of weather?

...

what do each of these instruments measure?

...

what are 2 organizations in charge of the overall weather?

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what is an isobar?

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what are various symbols found on a weather map and what do they mean?

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