Escue+7

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

Push up on the stretched balloon. What happens inside the cup? The balloon pulls to the other.

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

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

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. because the balloon inside pumps and releases.