Weather 1
Weather 2
Weather 3
Weather 4
Weather 5
100
The basic cause of all weather
the sun
100
Winds are produced by ___.
temperature differences on earth
100
The process in which water vapor leaves the air and changes into liquid water
condensation
100
Falling ice crystals that melt slightly, stick, and freeze together into snowflakes
wet snow
100
Layers of flat clouds belong to which family?
stratus
200
A scientist who studies the weather
meteorologist
200
Is warm air heavier or lighter than cool air?
lighter
200
Air is saturated when the humidity in the air is ___ %.
100
200
Falling ice crystals that melt into raindrops, then refreeze and land on earth as tiny pieces of ice.
sleet
200
Wispy, curly clouds very high in the atmosphere belong to which family?
cirrus
300
The imaginary line running through the earth from North Pole to South Pole
axis
300
The earth’s surface spins at over ___.
1,000 mph
300
Water vapor that condenses to form liquid water on the ground
dew
300
Falling ice crystals that melt, hit the earth as liquid rain, but refreeze as soon as they land.
freezing rain
300
Sheets of clouds that often produce rain
stratus
400
The air that we live in receives most of its warmth from the ___.
ground
400
The amount of water vapor that the air can hold at a given temperature is the ____ of the air.
relative humidity
400
Water that condenses and forms frozen water on the ground
frost
400
A small piece of ice that is tossed up and down inside a cloud, forming several layers of ice, until it is too heavy and falls to earth.
hail
400
Clouds made of very small ice crystals
cirrus
500
Different seasons are caused by the ____.
tilt of the earth's axis
500
The lowest possible temperature at which air is able to hold all of its water vapor
dew point
500
An ice crystal in a cloud that becomes too heavy, falls, melts, and lands on the earth as liquid water.
rain
500
Puffy, bulgy clouds belong to which family?
cumulus
500
Thunderhead is another name for which cloud?
cumulonimbus (cumulo-nimbus)
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