Uses of Air

The air is made up of several types of gases that all have their specific uses.

• True

• False

A fire requires fuel , heat and _____________ to stay active.

• carbon dioxide

• oxygen

• helium

• nitrogen

Which best describes the use of air in the image ?

• to surf

• to swim

• to move things

• to keep things afloat

Select all the objects that need air to operate .

• 
• 
• 
• 
• 

Which of the following gases of the air , would be the most appropriate to put out or control that fire?

• carbon dioxide

• oxygen

• nitrogen

• hydrogen

Which of the following is compressed or pressurized air used in ?

• 
• 
• 
• 
• 

Birds , bats and insects are able to fly without air.

• true

• false

Animals use __________ from the air to release energy from foods they eat.

• carbon dioxide

• nitrogen

• helium

• oxygen

Air allows to :

Select all that applies

• hear

• smell

• eat

• feel

The water cycle needs air in order to work.

• true

• false