How+breathing+works+2

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

Push up on the stretched balloon. What happens inside the cup? The balloon inside sucks up all the air.

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

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

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 The air pressure is similar because when oxygen goes into the lungs it inflates so non oxygen blood can get oxygen, so it inflates. I think it will work harder to keep the flow and also it would get all of the bad air out of your lungs.

Camille, you and your partner obviously took your time with this investigation and put some thought into your last answer. Good for you! Mrs. Escue