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Name __________________________
Tuesday, 10-18-16
Packet # 28
7th Science - ________
AIM: Weather Review – Unit Test on Thursday!!!!
Quote of the Day: On PowerPoint – I love this one.
Do Now
1.
What type of air always rises, warm or cold? Why?
__________________________________________________________________
__________________________________________________________________
2.
Which way do air molecules move/wind always blow? Why?
__________________________________________________________________
__________________________________________________________________
3. Draw all four weather fronts and describe the type of weather that could occur:
Weather Front
Cold
Warm
Occluded
Stationary
Symbol
Weather
4. Draw all five layers of the atmosphere, and describe something that happens at
each:
Layer of Atmosphere

What happens there?
A ________________________________ is a scientist who __________________ &
___________________ the weather
Type of Pressure/Front
Low-Pressure Area
Symbol
Resulting Weather
High-Pressure Area
Cold Front
Warm Front
Occluded Front
Stationary Front

Winds
o _____________, dense air sinks, causing ____________ pressure
o ____________, less dense air rises, causing _____________ pressure
o “___________-_________, _________-___________, & that’s the way winds
blows!”
o “_________-____________, __________-_________, & that’s the way wind
swarms!”
INDEPENDENT PRACTICE
PART 1: Fill-in-the-blank
1. Meteorologists can measure air pressure with a
_________________________.
2. We can usually predict the direction that weather blows, as
it moves from areas of _________ pressure to areas of
_________ pressure, and usually ______________ areas to
______________ areas.
TERM BANK
Cooler
Less
Greater
High
Barometer
Stronger
Meteorologist
3. Warm air is ____________ dense than cold air, so it always rises.
4. When a __________________ front passes, there can be rain followed by warmer
temperatures.
5. A _______________________________ is a scientist that studies and predicts
weather.
6. When a cold air mass and a warm air mass meet but neither pushes the other, a
_____________________ front is produced.
7. In a ________________ pressure system, the weather is generally clear and calm.
8. Air molecules constantly want _____________________________ where there is the
same amount of air molecules in all areas.
9. The ______________________ the difference in air pressure between two areas, the
_____________________ the wind blows.
PART 2: True/False. For each statement that is false, RE-WRITE THE ENTIRE
STATEMENT so that it is true.
10. ______________ If strong rain and a large drop in temperature occurs, a warm front
has most likely passed.
Low
Stationary
Equilibrium
Warmer
Warm
High
11. ______________ It is storming outside, so we must be experiencing a high-pressure
system.
12. ______________ When comparing two areas, the area with the higher temperature
will always have the lower pressure.
13. ______________ When air molecules move from an area of high pressure to an area
of low pressure, wind occurs.
14. ______________ Air molecules always move from areas of low pressure to areas of
high pressure in order to reach equilibrium.
15. ______________ The bigger the difference in air pressure between two areas, the
stronger the wind will blow.
PART 3: Complete the diagram by filling in the blanks to describe the air pressure.
Then, answer the questions that follow.
16. Why does the colder area always have higher pressure?
17. Why does the warmer area always have the lower pressure?
18. Does the wind always end up blowing from the cold area to the warm area? Why or
why not?
Complete the Frayer Diagram that follows:
Definition from my notes:
Also known as:
Definition in my own words:
Global Warming
Does everyone believe
it’s a problem?
Exit Ticket
1. What is the likely cause to the high and low-pressure systems on the map to the right?
a. Magnetic fields of the earth
b. Global warming
c. The sun’s energy
d. The moon’s activities
2. What effect can the tilt of the earth’s axis have on an area’s weather?
a. Some areas will receive all of the sun’s radiation and some will receive none
b. All areas receive the same amount of the sun’s radiation
c. Some areas receive more radiation than others as the earth revolves around the
sun
d. Earth’s rotation allows cooling at night after receiving full radiation during the
day
3. What does a barometer measure?
a) Wind direction
b) Air pressure
c) Wind speed
d) Air humidity
4. A rapidly moving cold air mass meets a slowly moving warm air mass and forms a
front. What will most likely occur at this front?
a. The two air masses will mix together
b. The warm air will slide under the cold air. The cold air will then rise and get
warmer
c. Cold air will slide under the warm air. Warm air will rise and cool. Clouds
will form
d. The less dense warm air will sink and cool. Clouds will form
5. Why, in a cold front, does the cool air mass move beneath the warm air mass?
a. Warm air is less dense, so it rises above the cold air
b. Warm air is more dense, so it rises above the cold air
c. Warm air is the same density, so it only rises above the cold air sometimes
d. Density doesn’t matter, warm air just prefers to rise above cold air