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Ch. 8 Science Test

Enter the letter for the matching Answer
incorrect
1.
falling ice crystals melt, hit the earth as liquid rain, but refreeze as soon as they land
incorrect
2.
term used to describe a cloud from which rain is falling
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3.
falling ice crystals that melt into raindrops, then refreeze and land on earth as tiny pieces of ice
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4.
another name for a cumulonimbus cloud which produces a thunderstorm
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5.
the reason why winds are produced
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6.
calm region of extremely low air pressure
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7.
superheated air expands rapidly, causing sound waves we hear as ...
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8.
row of cumulonimbus thunderheads that builds up to form a ___________ line
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9.
cold air pushing warm air
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10.
lightning bolts that don't touch ground, stay inside cloud, bright flash
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11.
the amount of water vapor that the air can hold at a given temperature
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12.
occurs when opposite electric charges build up
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13.
basic cause of all weather
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14.
ground level cloud
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15.
the lowest possible temperature at which air is able to hold all of its water vapor
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16.
wisp or curl, occur at very top of atmosphere, made of very small ice crystals
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17.
zigzags downward from a cloud. It is a thin channel of charged air through which the lightning bold can travel
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18.
warm air pushing cold air
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19.
falling ice crystals that melt slightly, stick, and freeze together into snowflakes
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20.
air we live in receives most of its warmth
A.
sheet lightning
B.
eye
C.
from the ground
D.
cold front
E.
thunderhead
F.
thunder
G.
wet snow
H.
warm front
I.
freezing rain
J.
fog
K.
sleet
L.
the sun
M.
temperature differences found on the earth
N.
nimbus
O.
relative humidity
P.
lightning
Q.
squall
R.
cirrus
S.
dew point
T.
step leader
Type the Answer that corresponds to the displayed Question.
incorrect
21.
boundary between 2 air masses
incorrect
22.
type of storm that packs most destructive power into the smallest space
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23.
puffy, bulgy cloud, occur in good weather
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24.
a scientist who studies weather
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25.
water vapor that condenses and forms frozen water on the ground
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26.
produced by very tall clouds such as cumulonimbus
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27.
an imaginary line circling the earth midway between the North and South poles
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28.
occurs when a tornado has been spotted
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29.
layer or flat clouds, low blanket or sheet, are a sign that rain is approaching
incorrect
30.
how fast the earth travels per hour to keep up with a 24 hr. day schedule

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Created by: kdeangelo