Weather and Atmospheric Movement

Question 1

What causes wind and ocean currents

Answer 1

The uneven heating of the Earth by the sun creates convection currents.

Question 2

What is convection

Answer 2

The heating and rising then cooling and sinking of material forming a circular pattern of movement

Question 3

What part of the Earth receives the most direct light from the sun?

Answer 3

The equator

Question 4

What instrument is used to measure humidity?

Answer 4

Psychrometer (Si-craw-meter)

Question 5

What is humidity?

Answer 5

1. The amount of moisture found in the air.

2. The relative measure of the amount of water vapor in the air.

Question 6

What is an air mass?

Answer 6

A body of air that has the same temperature and humidity all the way through it.

Question 7

Where can you find convection currents?

Answer 7

Boiling water, magma, air currents and ocean currents

Question 8

What causes convection currents to happen in the air and oceans on Earth?

Answer 8

The uneven heating of the Earth’s surface by the sun.

Question 9

Where does a maritime air mass form?

Answer 9

Over the ocean

Question 10

Where does a continental air mass form?

Answer 10

Over land

Question 11

What is a land breeze?

Answer 11

A breeze that moves from land out over the ocean at night.

Question 12

How is a land breeze created?

Answer 12

From air moving from high pressure (cooler temperature) over land to low pressure (warmer temperature) over water

Question 13

What is a sea breeze?

Answer 13

A breeze that moves from the ocean in towards the land during the day.

Question 14

How is a sea breeze created?

Answer 14

It moves from high pressure (cooler temperature) over the ocean to low pressure (warmer temperature) over the land.

Question 15

What three things are caused by the uneven heating of the Earth?

Answer 15

1. Convection Currents
2. Wind Patterns (land and sea breezes)
3. Ocean Currents

Question 16

What main condition is needed for a hurricane to happen?

Answer 16

Water above 80 degree Fahrenheit.

Very warm water

Question 17

What happens as a hurricane moves in over land?

Answer 17

It loses energy (strength) because it loses its energy source.

Question 18

Air masses formed near the equator would have a ______________ temperature?

Answer 18

Warm/High

Question 19

Air masses formed near the polar regions would have a ________________ temperature

Answer 19

Cold/Low

Question 20

Air masses formed over oceans would have ___________ humidity

Answer 20

High

Question 21

Air masses formed over land would have ___________ humidity

Answer 21

Low

Question 22

What are air masses formed over water called?

Answer 22

Maritime

Question 23

What are air masses formed over land called?

Answer 23

Continental

Question 24

Describe a Continental Polar (cP) air mass

Answer 24

It is dry and cold

Question 25

Describe a Continental Arctic (cA) air mass

Answer 25

It is dry and very cold It is dry and super cold It is cry and bitterly cold

Question 26

Describe a Continental Tropical (cT) air mass

Answer 26

It is dry and warm

Question 27

Describe a Maritime Tropical air mass

Answer 27

It is moist and warm | It has high humidity and is warm

Question 28

Describe a Maritime Polar air mass

Answer 28

It has high humidity and is cold | It is moist and cold

Question 29

What causes convection currents to move the way they do? (Why does hot material rise and cold material sink?)

Answer 29

Convection currents move because of density (warm air is less dense so it rises) and air pressure (warm air is less dense so it has less air pressure)