Download File - Mr. Lloyd`s 7th grade science!

NAME__________________________________
DATE______________
Section 2-4 “Global Heat Balance Review and Weather Analysis”
Part I – “Review of Global Heat Balance” – Choose One of the Following Answers
1.) The role of mid-latitude (where we live) synoptic (broad) weather systems is to remove
temperature and density gradient by advecting warm air ________________________and cold
air ________________________.
A.) Poleward, Equatorward
B.) Equatorward, Poleward
C.) Both A and B
D.) None of the above
2.) Due to the Earth’s small tilt with respect to its axis of rotation, the
______________________received much more energy (heat) from the Sun than the
_____________________ regions.
A.) Polar, Tropics
B.) Tropics, Polar
C.) Both A and B
D.) None of the Above
3.) ___________________________ are the major means of transport for weather systems. A
______________________________ is strong, upper level winds ranging from 120-250 mph that
can be thousands of miles long, a couple of hundred miles across and a few miles deep.
A.) Jetstreams
B.) Confluence
C.) Tornadoes
D.) Hurricanes
4.) Advection of the wind moves cool air ______________________ warm air, or warm air
_________________________cool air. This is because warm air is less dense than the cooler air
(more water vapor in warm air).
A.) above, below
B.) below, below
C.) below, above
D.) None of the above
5.) Convective currents are produced through__________________, _________________, and
_________________________.
A.) heating and cooling of a liquid
B.) changes in the fluids density
C.) the force of gravity, along with convection
D.) All of the above
6.) When surrounding air cools the air pressure near the surface
____________________________.
A.) increases
B.) decreases
C.) stays the same
D.) none of the above
Part II – “The Movement of Air Masses” – Match the Following
Air Masses
Form over large areas of Earth's surface, and
take on the general temperature and moisture
characteristics of the area over which they form.
Front
Is defined as the leading edge of a warm air
mass overtaking a slower, cooler air mass.
Stratus clouds are most common.
Maritime Air Mass
Form when a cold air mass moves under a warm
air mass which is less dense and pushes air up
(produces thunderstorms heavy rain or snow).
Cumulus and Cirrus clouds are most common
within this type of front.
Continental Air Mass
A boundary between two air masses of
different density, moisture, or temperature.
High Pressure System
A counter-clockwise whirling mass of warm,
moist air that generally brings stormy weather
with strong winds.
Low Pressure System
Is a clockwise whirling mass of cool, dry air that
generally brings fair weather and light winds.
Cold Front
Are air masses that form over large bodies of
water. Usually, this air mass consists of moist,
unstable air.
Warm Front
Are air masses that form over large land
surfaces. Usually this air mass consists of dry,
stable air
Part III – “How Do Clouds and Rain Form” – Fill in the Cloud Diagram
**********Word Bank For Clouds**********
Cirrus, Stratus, Cumulus, Cumulonimbus, Altostratus, Stratocumulus
Part IV – “How do Meteorologists Study and Predict Weather” – Fill in the Blank
***Word Bank For Predicting Weather***
Meteorologist, Isotherms, Radiosondes, Doppler Radar, Weather Satellites, Isobars,
Forecaster, Aircraft, Weather Maps
20.) _______________________ is an expert in or student of meteorology, a weather
forecaster.
21.) _______________________ is the application of science and technology to predict the state
of the atmosphere for a given location.
22.) Meteorologists use a variety of technologies to study weather, including
___________________, ________________________, ______________________,
_______________________________, and ___________________________.
23.) ___________________________ detects precipitation intensity, wind direction and speed,
and provides estimates of hail size and rainfall amounts. ____________________________ gives
forecasters the capability of providing early detection of severe thunderstorms that may bring
strong damaging winds, large hail, heavy rain, and possibly tornadoes.
24.) _____________________________ measures a vertical profile of the atmosphere.
Forecasters can analyze the data, and use the data to predict weather patterns/storms.
25.) - ___________________________ and ____________________________ are lines on
weather maps which represent patterns of pressure and temperature, respectively. They show
how temperature and pressure are changing over space and so help describe the largescale weather patterns across a region in the map.
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26.) How do meteorologists study and predict weather?
27.) How does the movement of air masses affect weather?
28.) How do clouds and rain form?