What is the ATMOSPHERE?

• The layer of air surrounding the Moon.

• The layer of air surrounding the Earth.

• The layer of air surrounding the Sun

• The layer of air surrounding all the planets.

Air is a mixture of different gases, but the main gases are...

• Oxygen and carbon dioxide

• Oxygen and nitrogen

• Nitrogen and carbon dioxide

What are the layers of the atmosphere?

• The troposphere

• The stratosphere

• Outer layers (mesosphere and thermosphere)

• All answers are correct

Weather phenomena occur in the...

• Mesosphere

• Troposphere

• Stratosphere

What is WEATHER?

• It's the state of the Earth at a particular time and place.

• It's the state of the atmosphere at a particular time and place.

• It's the state of the Sun at a particular time and place.

• It's the state of the Moon at a particular time and place.

A THERMOMETER measures...

• wind speed in kilometres per hour

• temperature of the air in degrees celsius

• precipitation: rain, snow or hail in litres per square metre

• wind direction: north, south, east or west

What INSTRUMENT measures wind speed in kilometres per hour?

• Thermometer

• Weather vane

• Rain gauge

• Anemometer

What INSTRUMENT measures wind direction? (north, south, east or west)

• Thermometer

• Rain gauge

• Weather vane

• Anemometer

What is the CLIMATE?

• It's the weather in a particular place over a LONG PERIOD of time.

• It's the weather in a particular place over a SHORT PERIOD of time.

• It's the weather in a particular planet over a LONG PERIOD of time.

WEATHER and CLIMATE are the same.

• True

• False