Breathing

Our bodies need the _________ in the air we breathe.

• feathers
• oxygen
• carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

When you take air in through your mouth or your nose, you....

• exhale
• cough
• inhale

When you breathe hard, your body...

• gets really sweaty.
• takes in more oxygen.
• sounds loud.

Name the organ label # 6. 

• alveoli 
• bronchi 
• trachea 
• lungs 

What is the main bone structure that protects the lungs

• Vertebrae
• Rib cage
• Skull
• Pelvis

Why is the diaphragm important to the respiratory system ?  

• It contracts or expands air from the lungs.
• It helps the system to digest. 
• It helps the system to do its main functions. 
• It helps decrease the carbon dioxide in the system. 

Tags

NGSS.MS-LS1-3

the ____ look like a wasp's nest and is where the exchange of oxygen and carbon dioxide takes places.

• alveoli
• bronchial tubes
• lung
• diaphragm

When air pressure inside the lungs is less than air pressure in the atmosphere...

• Air moves into the lungs
• Air moves out of the lungs

Tags

NGSS.MS-LS1-3

When the diaphragm contracts and moves down, the lungs are...

• expanding with air
• shrinking - pushing air out

How many lungs do you have?

• 0

• 1

• 2

• 3