3. Matter and Energy

What type of change, physical or chemical, takes place in each of the following? d. A puzzle is cut into 1000 pieces.

Identify each of the following as a physical or chemical change: (3.2) a. Aspirin tablets are broken in half.

What type of change, physical or chemical, takes place in each of the following? c. A tree is cut into boards at a saw mill.

Name two changes of state and describe what causes each to occur.

What is the difference between a physical change and a chemical change?