The Atmosphere

Question 1

What is the main source f heat from the earth?

Answer 1

The sun

Question 2

What percentage of the air is nitrogen?

Answer 2

78%

Question 3

What percentage of the earth is oxygen?

Answer 3

21%

Question 4

What are the different layers of the earth?

Answer 4

Troposphere

Stratosphere

Question 5

During our summers (northern hemisphere) which way is the sun facing?

Answer 5

Towards the sun

Question 6

What are doldrums?

Answer 6

An area of calm weather

Question 7

What are trade winds?

Answer 7

The air movements towards the equator

Question 8

What are two warm currents?

Answer 8

North Atlantic drift

Gulf Stream

Question 9

What are two cold currents?

Answer 9

Labrador

Canary

Question 10

What are two hot air masses over Ireland?

Answer 10

Tropical continental

Tropical maritime

Question 11

What are three cold air masses over Ireland?

Answer 11

Polar continental
Artic
Polar maritime

Question 12

What are isobars?

Answer 12

Lines on a weather chart that show places of equal atmospheric pressure

Question 13

What are isohyets?

Answer 13

Lines on a weather map joining places of equal rainfall

Question 14

What are isotherms?

Answer 14

Lines on a weather map joining places of equal temperature together

Question 15

How are warm fronts represented on a weather chart?

Answer 15

Red lines with red semi circles

Question 16

What is a cold front on a weather chart?

Answer 16

Blue lines with blue triangles

Question 17

What is an occluded front?

Answer 17

Warm and cold front together

Question 18

What are anticyclones and how are they represented?

Answer 18

Showing areas of high pressure denoted with a H

Question 19

What are depressions and how are they denoted?

Answer 19

Areas of low pressure that are donated by a L

Question 20

How is atmospheric pressure measured?

Answer 20

With a barograph

Question 21

How is humidity measured?

Answer 21

With a hydrometer

Question 22

What is a Stevenson screen used for?

Answer 22

To measure atmospheric pressure and temperature

Question 23

What piece of equipment measures wind speed?

Answer 23

Anemeter

Question 24

What piece of equipment measures wind direction?

Answer 24

Wind vane

Question 25

How is sunshine measured?

Answer 25

With a Campbell stokes recorder

Question 26

What are the three types of clouds?

Answer 26

• Stratus
• Cumulous
• Cirus

Question 27

What are stratus clouds?

Answer 27

Look like flat sheets and indicate a rainy day

Question 28

What are cumulus clouds?

Answer 28

Look like fluffy balls of cotton indicate good weather

Question 29

What are cirrus clouds?

Answer 29

Wispy curls

Question 30

What is conventional rain?

Answer 30

The ground is heated and cools and condensed into clouds

Question 31

What s cyclonic or frontal rain?

Answer 31

A cold front and warm front come together, the warm air is less dense than the cold air so it rises. It cools ams condenses into clouds.

Question 32

What is relief rain?

Answer 32

When prevailing winds pick up moisture when it travels across the sea. When the wind reaches the coast it is forced upwards into clouds. As the wind continues to go over the mountain it drops its moisture as relief rain

Question 33

What are the four stages of the water cycle?

Answer 33

• Evaporation
• Condensation
• Precipitation
• Run off

Question 34

What is the green house gas effect?

Answer 34

The gases in the earths atmosphere are being trapped in the earth and causes an increase in temperature