Any time you see this complete the directions!
Name:_____________________
6th Grade Science
Date:_______________________
Winds
What is wind and why does it move?
 Wind is moving air.
 **It moves because of differences in air _________________________.
 Air moves from areas of __________ pressure to areas of _______ pressure.
Types of Winds
 Global Winds
 Are part of a pattern of air circulation that moves across the Earth
 Move large distances and blow in the _____________________ direction.
 Local Winds
 Move ______________________ distances and blow from any direction
Bill Nye Wind Video

Wind is cause by the ___________________ from the Sun and the
_____________________ of the Earth.

What did the “great big plastic wind box of science” show? __________________
______________________________________________________________
______________________________________________________________
Global Winds

Label the Earth
with the 3 Global Winds:
Trade Winds

Blow from 30 ° latitude to 0 ° (the equator).

Early “_________________________” used these winds to sail from Europe to
the Americas.

The trade winds of the north and south meet at the equator (the doldrums).

Flow from the ________________ to the southwest in the northern hemisphere.

Flow from the ________________ to the northwest in the southern hemisphere.
Westerlies

Blow from the ____________° to _____________° latitudes

They flow from the southwest to the northeast in the northern hemisphere.

They flow from the northwest to the southeast in the southern hemisphere.
Polar Easterlies

Blow from the poles to the 60° latitudes.

They come ______________ the "poles" and from the "___________________".
Global Winds and Pressure Belts Picture
What is the name of the convection “cell” between the equator and 30° latitude?
______________________________________________
Coriolis Effect

The Earth's _________________________ affects the movement of the winds.

The Coriolis Effect is the curving of moving objects, such as wind, by the Earth's
rotation.

Northern Hemisphere - curve to the _____________________________.

Southern Hemisphere - curve to the _____________________________.
Coriolis Effect Merry Go Round

For someone above looking down on the Merry Go Round, the path ball of the ball
appears _____________________________.

For the children rolling the ball on the Merry Go Round, the path of the ball
appears to _____________________________.
What is the Coriolis Effect? Video (FYI: A “round about” is a Merry Go Round )

What did they use to demonstrate the Coriolis Effect? : ____________________
______________________________________________________________
Pressure Belts

Areas of high or low __________________ that occur at about every ________°
of latitude.

Label the missing pressure belts:
Doldrums

Areas of low pressure around the ___________________________.

This where the __________________________ winds meet.

There is little wind because of warm air rising.

Doldrums mean "______________________________" in Old English.
Horse Latitudes

Areas of ___________________ pressure around 30° N and 30° S where the
winds are week.

When sailors would sail into these latitudes they would have to throw the horses
overboard to save _________________________.
Poles

At north and south poles, there is cold air, so it is a ______________ pressure
"belt" (a very small belt"!)

The cold air _____________________ and moves away from the poles.
Polar Front

Areas of low pressure at _________° N and ___________° S.

As the cold air from the poles moves across the land, it warms and creates a
_______________ pressure belt.
Jet Streams

How long are the Jet Streams? ______________________________________

How thick are the Jet Streams? _____________________________________

These are areas of high speed winds that blow in the upper troposphere and lower
stratosphere.

They do ________________ follow regular paths around the Earth.

The winds can reach up to ______________ km/h.

These can affect the movement of _________________________.

They can help in flying.

How many Jet Streams are there in the Northern Hemisphere? ______________
Label the missing Jet Streams:
Cross Section of the Jet Streams
Wind Video

What heats and cools faster, land or water? __________________________

Cold air is ______________________. The air molecules need less room to
move. You can fit more of them into one area.

Warm air is _____________________. Warm air as a _________________
pressure.

The ________________________ the pressure differences, the faster the
winds.
Local Winds

These winds are influenced by ____________________________, like shorelines
and mountains.

Examples: sea and land breezes, _______________________ and valley breezes.
Sea and Land Breezes

Sea breezes happen during the ________________________.

Land breezes happen during the ________________________.
Sea Breezes

List 2 things you learned from the sea breezes website:
1. ____________________________________________________
2. ____________________________________________________
Land Breezes

List 2 things you learned from the land breezes website:
1. ____________________________________________________
2. ____________________________________________________
Mountain and Valley Breezes
Valley Breezes

The sun heats the valley and the air near it during the day. The warm air
moves _______________ from the valley.

Complete the diagram below:
Mountain Breezes

At night, mountains cool faster than the valley. Cold air _______________
from the top of the mountain to the valley.

Complete the diagram below: