How+breathing+works+22

Type in the content of your page here. OBSERVE: Pull down slowly on the stretched balloon. What happens to the balloon inside the cup? The balloon inflates when you pull down and makes it seem like you're inhaling.

Push up on the stretched balloon. What happens inside the cup? When you pull up the air in the cup goes out the straw.It makes it look like you exhale.

EVALUATE: Is there more or less space inside the cup when you pull down on the large balloon? It is more because the space the balloons taking up is now out [free].

IDENTIFY: When you pull the large balloon down, what fills the extra space in the cup? When you pull the large balloon down the air fills 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. The air pressure in the balloon is similar to your lungs because when you pulled down the air filled the balloon.What I think happens when you breath air into your lungs is that the air you inhale is cleaned.

Well done, Yvonne. You have thought this out and learned how breathing works via the model you built. Good job!