Transcript Bell Ringer 11-15-10

Bell Ringer Answers 11-15-10
1. Small changes in the atmosphere today
can cause large changes in the future.
2. Computers, weather maps, satellites,
radar, weather stations, and others
3. A line with triangles on the front side.
Bell Ringer Answers 11-16-10
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The air must be cold (at or below the dew point) for
water vapor to condense and form clouds. Air at
high altitudes is generally colder than air near the
surface.
Sleet forms when rain falls through a layer of air
below O C and freezes into small particles of ice. Hail
forms when ice pellets in a cumulonimbus cloud are
carried up into the cold region of the cloud by strong
updrafts, each time gathering another layer of ice
until they are heavy enough to fall to the surface.
Snow forms when water vapor in a cloud is
converted directly into ice crystals.
The prevailing westerlies and jet streams generally
move air masses from west to east in the continental
United States.
Bell Ringer Answers 11-17-10
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A cold front forms when a fast-moving
cold air mass overtakes a warm air mass,
forcing the warm air to rise.
Floods occur when a stream or river
overflows its banks or, in urban areas,
when the ground is saturated by heavy
rains.
Because the storm can no longer get
energy from warm ocean water, it
weakens and eventually dissipates.
Bell Ringer Answers 11-18-10
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2. Along cold fronts, dense cold air advances beneath less
dense warm air and the warm air is pushed upward
along the leading edge of the front. Along warm
fronts, warm air rises over denser cool air.
3. The water particle evaporates from the ocean to
change from a liquid to a gas. The gas rises and cools,
and become liquid again in a process called
condensation. When many water droplets collect,
clouds form. Eventually, the droplet becomes larger
and heavier and falls back to Earth as precipitation.
Bell Ringer Answers 11-19-10
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Clouds and precipitation
No. The water temperature in these
regions is too low for hurricanes to form.
Meteorologists cannot accurately forecast
the weather a month in advance because
of the butterfly effect: A small change in
the weather today can mean a larger
change in the weather at a later date.