Unit 4 Lesson 1

Question 1

Weather

Answer 1

The condition of earth’s atmosphere at a certain time and place

Question 2

Temperature

Answer 2

A measure of how hot or cold something is

Question 3

Humidity

Answer 3

The amount of water vapor in the air

Question 4

Relative humidity

Answer 4

The amount of water vapor in the air compared to the amount of water vapor needed to reach saturation

When air is saturated, the rates of condensation and evaporation are equal. Saturated air has a relative humidity of 100%

Question 5

Dew point

Answer 5

The temperature at which the rate of condensation and evaporation are equal

Question 6

Precipitation

Answer 6

Any form of water that falls to earth from the clouds

Question 7

Air pressure

Answer 7

The force of air molecules pushing on an area

Air pressure and density both decrease with altitude ( the higher you go)

Question 8

Wind

Answer 8

The air that moves horizontally or parallel to the ground

Anemometer- measures wind speed
Wind Vane - measures wind direction

Question 9

Visibility

Answer 9

A measure of the transparency of the atmosphere
The way we describe how far we can see