Chapter 3

What was the greatest wind speed ever measured at Earth’s surface? Where? What year?

True or False Because air is a fluid, it can move easily from place to place.

What is the force that makes air move?

True or False Fluids tend to move from areas of high pressure to areas of low pressure.

A __________ is the horizontal movement of air from and area of ______ pressure to an area of _____ pressure

True or false All winds are caused by differences in air pressure.

What are most differences in air pressure caused by?

How are winds described?

What measurement tool determines wind direction?

A south wind blows from the _________ to the ________.

A _________ wind blows to the south.

What tool is used to measure wind speed?

Describe an anemometer.

What is attached to the axle of the anemometer to show wind speed?

What is the increased cooling that a wind can cause called?

Convection currents form when an area of earth’s surface is heated by what?

Air over the heated surface of the earth expands and becomes less ________.

As air becomes less dense, what happens to air pressure?

If a nearby area is not heated as much, the air above the less heated area will be cooler and ______.

Cool, dense air has a ________ air pressure so it flows underneath the _______, less dense air.

How many meters above sea level is the highest point in the northeastern USA? And where is it?

______ winds are winds that blow over short distances.

Local winds are caused by the unequal heating of Earth’s surface within a _______ area.

Unequal heating often occurs on land that is next to a _____ ____ ___ ______.