How+Breathing+Works+9

OBSERVE: Pull down slowly on the stretched balloon. What happens to the balloon inside the cup The balloon blows up

Push up on the stretched balloon. What happens inside the cup?

it inflat

EVALUATE: Is there more or less space inside the cup when you pull down on the large balloon?

thar are more

IDENTIFY: When you pull the large balloon down, what fills the extra space in the cup?

ari

COMPARE: How is the air pressure in the balloon similar to the air pressure in your lungs? Write down what you think happens when you breathe air into your lungs. when your lungs get air it gows to the litte graps thegs.

Great effort, Noah! I would encourage you to borrow a model of the lung from me and repeat the OBSERVE step and rethink your second answer. You may choose a partner to help you. Also rethink your answer about the air pressure and what happens when you breathe. That's the tough one!