Chap 5

Question 1

Air is a mixture of nitrogen, _____, carbon dixoide, and other gases.

Answer 1

oxygen

Question 2

Air pressure is measured with a ______

Answer 2

barometer

Question 3

The layer of the atmosphere that people live in is the ____

Answer 3

troposphere

Question 4

The boundary where two unlike air masses meet is called a _____

Answer 4

front

Question 5

Clouds formed from condensed ___ or ice crystals

Answer 5

water vapor

Question 6

Three basic shapes of clouds are cirrus, cumulus, and ____

Answer 6

stratus

Question 7

When static electricity moves between clouds or between the clouds and the earth, ___ is created

Answer 7

lightning

Question 8

When conditions are right for a type of severe weather that is not currently happening, the National Weather Service issues a ____

Answer 8

weather watch

Question 9

List the layers of the atmosphere beginning with the layer farthest from the earth.

Answer 9

1. Exosphere
2. Thermosphere
3. Mesosphere
4. Stratosphere
5. Troposphere

Question 10

The thin blanket of gases and dust particles that surrounds the earth is called the ______

Answer 10

atmosphere

Question 11

The weight of the air is called ______

Answer 11

air pressure

Question 12

The measurement of the distance above sea level is called _____

Answer 12

altitude

Question 13

The condition of the atmosphere at any moment in time is called the _____

Answer 13

weather

Question 14

The atmosphere is held close to the surface of the earth by the force of _____

Answer 14

gravity

Question 15

God designed the _____ to provide the air we breathe, to protect the earth, and to control the climate for each area of the earth.

Answer 15

atmosphere

Question 16

How does altitude affect air pressure

Answer 16

As altitude increases the air pressure decreases

Question 17

What does the ozone do?

Answer 17

It protects the earth from the sun

Question 18

What are the characteristics of the troposphere?

Answer 18

1. it’s where weather occurs
2. it holds in the radiant heat of the sun
3. it helps keep the surface of the earth warm
4. it contains about half of the air in the atmosphere

Question 19

An air mass over northern Minnesota becomes ____ as it moves over the cool land area?

Answer 19

cooler

Question 20

As a cool air mass moves over a hot desert, the cool mass will probably ___

Answer 20

become warmer and drier

Question 21

A high pressure air mass moves into a warm area. The air in the area will most likely ____

Answer 21

become cool

Question 22

High pressure centers are usually ___ than low pressure centers

Answer 22

denser

Question 23

When a low pressure mass moves over land, it usually brings ___ air

Answer 23

cool, dry

Question 24

When a warm air mass moves over a slower cool air mass, the boundary where the two air masses meet is called a _____

Answer 24

warm front

Question 25

When two air masses push against each other and do not move, the boundary where the two air masses meet is called a ____

Answer 25

stationary front

Question 26

When a cool air mass pushes itself under a weaker warm air mass, the boundary where the two air masses meet is called a ____

Answer 26

cold front

Question 27

What is influenced by temperature changes in a small area called?

Answer 27

local winds

Question 28

What is a boundary where two unlike air masses meet called?

Answer 28

front

Question 29

What is a move in large, circular belts around the earth called?

Answer 29

global winds

Question 29

What is a body of air that has about the same temperature and moisture called?

Answer 29

air mass

Question 30

What is moving air called?

Answer 30

wind

Question 31

A high-pressure (dense) air mass usually has ____, dry air

Answer 31

Cool

Question 32

A low pressure (light) air mass usually has ____, moist air

Answer 32

warm

Question 33

The instrument that shows the direction wind is blowing from is a _____

Answer 33

wind vane

Question 34

Wind speed is measured by an _____

Answer 34

anemometer

Question 35

Winds are identified by the _____ from which they blow and ___ in temperature

Answer 35

1. direction 2. Differences

Question 36

The winds that Columbus used to sail to the New World were the ____

Answer 36

trade winds

Question 37

The winds that Columbus used to said to Europe were the ____

Answer 37

westerlies

Question 38

The winds that blow away from the poles are the ____

Answer 38

polar easterlies