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Chapter 15 (The Atmosphere) - Section 3 (Global Winds)
Jigsaw Activity
Global Winds: Jigsaw Activity
Directions:
- Sit with your expert group members and use your textbook and notes to
research your topic. You need to understand the information well enough to
teach it to your class.
- You will get up as a group and teach your topic to the class (everyone must
speak).
- Be sure to take notes while others are teaching. Record your notes in the
proper location of packet.
My expert group topic: ___________________________________
Follow the packet to answer the questions for your specific topic:
- You will be graded on content being correct and the
presentation of material to the class.
Jigsaw Activity – Winds
Rubric
SPECIFIC JOB
Information must be correct
Overhead and board notes must be neat easy to read
Pictures must be clear and big enough to see
Everyone must have a speaking part
You must speak loud and clear
Eye contact is important
TOTAL
POINTS
POSSIBLE
10
10
5
5
5
5
40
POINTS
EARNED
Group #1 – Why Air Moves
 Define and describe each of the following in detail!
Wind
Causes of
differences in Air
Pressure
High Pressure
Low Pressure
 Label which of the following shows HIGH air pressure and which shows
LOW air pressure
Convection Cells
Pressure Belts at
every 30 Latitude
 Label the following latitudes: 0, 30N, 60N, 90N, 30S, 60S & 90S
 Notice the pressure in each area as HIGH pressure or LOW pressure
Group #2 – Coriolis Effect
Because the Earth is rotating, winds do not blow straight!
-In the N Hemisphere, winds flowing North, curve to the ____________
-In the N Hemisphere, winds flowing South, curve to the _____________
**The OPPOSITE is true in the Southern Hemisphere**
-In the S Hemisphere, winds flowing North, curve to the _____________
-In the S Hemisphere, winds flowing South, curve to the ______________
Complete the diagrams by drawing curved arrows to represent the path of the
wind from High to Low pressure
HIGH
LOW
HIGH
LOW
LOW
HIGH
LOW
HIGH
N. Hemisphere
N. Hemisphere
S. Hemisphere
S. Hemisphere
Group #3 – Global Winds
 Global winds are named for the direction FROM which they blow.
Ex: Easterlies blow from the ____________ to the ________________
Westerlies blow from the ____________ to the ________________
 Briefly describe each type of global wind:
Polar
Easterlies
Westerlies
Trade Winds
 Label each type of global winds in BOTH hemispheres on the map below
Group #4 – Pressure Belts & Jet Streams
 Briefly describe the two pressure belts
Doldrums
Horse
Latitudes
 Label each pressure belt in BOTH hemispheres on the map below
 What is a jet stream?
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 How does the jet stream differ going from NY to California versus from
California to NY? Use the map of the jet stream over North America
and circle the word to make the explanations correct.
- It takes LONGER or SHORTER
to go from NY to California.
It takes LONGER or SHORTER
to go from California to NY.
Group #5 – Local Winds
 What are local winds?
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 Sea Breezes occur during the __________, when warm air over land heats
and ________________, this causes lower pressure over land.
Over the cooler water, air cools and ___________, which causes higher
pressure over water. The difference in pressure causes a breeze to flow from
___________ to ____________, hence a sea breeze.
 Land Breezes occur during the ______________, when water is warmer
than the land. The warm air over the water heats and ______________,
which causes lower pressure over the water.
Over the cooler land, air cools and ___________, which causes higher
pressure over the land. The difference in pressure causes a breeze to flow
from _____________ to ______________, hence a land breeze.
 Label both pictures:
 Which picture shows a Sea Breeze and which shows a Land Breeze.
 Show where the HIGH pressure is (Sinking air) with and “H”
 Show where the LOW pressure is (Rising air) with an “L”
 Valley breezes occur during the _____________, when warm air rises up
the slope of the mountain, coming FROM the valley.
 Mountain breezes occur at _____________, when the air along the slopes
of the mountain cools, and sinks back down the mountain, FROM the
mountain.
On the picture below, label which shows a Valley Breeze and which shows a
Mountain Breeze.
Group #6 – Review Section 15-1 – Layers of the atmosphere
 Label each layer and list at least 2 important facts about each layer
Exosphere ______________________________________________
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***************EARTH***************