How Do Our Lungs Work

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.

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Our bodies need the _________ in the air we breathe.

• feathers
• oxygen
• carbon dioxide

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The muscle that helps us breathe in air is called the.....

• diaphram
• bicep
• leg

When you exercise, your heart beats faster to...

• spread oxygen throughout your body more quickly.
• make you feel excited.
• let you know you're working hard.

There are more than ____ alveoli in your lungs.

• 20
• 500 thousand
• 600 million

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NGSS.MS-LS1-1

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The alveoli are where....

• the two characters in the movie live.
• oxygen gets absorbed into the body.
• you breathe.