Breathing System

Which is the main organ in the breathing system

• windpipe

• mouth

• lungs

• nose

When you exhale (breathe out), these 2 gases come out. 

• hydrogen

• water vapour

• oxygen

• carbon dioxide

Oxygen enters our body from the ____________.

• windpipe-nose-lungs

• nose-windpipe-lungs

• lungs-windpipe-nose

Name this organ.

• lungs

• heart

• windpipe

• rib cage

Which activity makes your breathing fast?

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• 
• 

Which activity is not good for your lungs?

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• 
• 

The rate (speed) of your breathing is affected by the activity that you do.

• True

• False

Which is the main function of breathing system?

• Transport blood to all part of the body.

• Supply your blood with oxygen.

• To move our body.

Air is made up of oxygen and carbon dioxide.

• True

• False

Which is not part of the breathing system?

• nerves

• windpipe

• nose

• lungs