the+breathing+investigation+16

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

It pumps air when you push in and then releases when u pull out. But what happens to the balloon? Describe it for me. Push up on the stretched balloon. What happens inside the cup? answer The air in the balloon wants to get out. Does it? What happens; what do you observe happening to the balloon?

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

less because the air expands Think about this again. IDENTIFY: When you pull the large balloon down, what fills the extra space in the cup?

The extra space is the balloon expanding. eat out youlet the air out of you This doesn't make any sense. What is filling the extra space?

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 you breath air out you let the air out of you and when you breath in you fill your lungs with oxygen. You haven't answered either question. How is the air pressure similar in both the model of the lung and your real lungs? What happens to your lungs when you breathe air into them?