Transcript Air and Weather

Air and Weather
Text pg. D10-D17
V. Martinez
1. An air mass has the same
general properties as the area over
which it forms.
2. An air mass is a huge body of air
which all has the same temperature
and moisture.
3. Moist air masses form over
water.
4. An air mass that forms near the
equator is warm.
5. An air mass that forms over the
Gulf of Mexico would most likely be
warm and moist.
6. The green house effect is when
the earth’s atmosphere traps heat
near the Earth’s surface.
7. A front is the border where two
air masses meet and where
weather happens.
8. A warm front forms when a
warm air mass catches up to a cold
air mass. The warm air mass is
moving faster.
9. A cold front forms when a cold
air mass catches up to a warm air
mass. The cold air mass is moving
faster.
10. Cirrus clouds are very wispy
white clouds. They form at high
altitudes. They usually have ice
crystals.
11. Cumulonimbus clouds are
towering white gray clouds. They
usually mean it will rain soon.
12. Cumulus clouds are puffy,
cotton ball clouds. We see them on
clear, warm, days.
13. Stratus clouds form a low layer
of dark gray. They occur along
warm fronts. Sometimes they
bring light showers.
14. How does wind speed
change as a weather front
moves into an area?
• Wind speed often increases as a weather
front moves into an area.
15. What happens to air pressure
as a front moves into an area?
• Air pressure drops as a front moves into
an area.
16. Does air temperature increase
or decrease as a cold front moves
into an area?
• Air temperature decreases as a cold front
moves into an area.
17. A line with half circles on a
weather map is a symbol for a
warm front. The circles point in the
direction the front is moving.
18. A line with triangles is the
symbol for a cold front. The air is
colder BEHIND the cold front.