What do these two changes have in common?
water boiling on a stove
tearing a piece of paper

 - Both are caused by cooling.
 - Both are only physical changes.
 - Both are chemical changes.
 - Both are caused by heating.
Step 1: Think about each change.
Water boiling on the stove is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed.
Tearing a piece of paper is a physical change. The paper tears into pieces. But each piece is still made of paper.
Step 2: Look at each answer choice.
Both are only physical changes.
Both changes are physical changes. No new matter is created.
Both are chemical changes.
Both changes are physical changes. They are not chemical changes.
Both are caused by heating.
Water boiling is caused by heating. But tearing a piece of paper is not.
Both are caused by cooling.
Neither change is caused by cooling.