1. Matter and Measurements

Which of the following is a physical change?

Which of the following represents a reversible change?

What type of change, physical or chemical, takes place in each of the following?

d. A puzzle is cut into 1000 pieces.

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.

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

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

Identify each of the following as a physical or chemical change:

a. Aspirin tablets are broken in half.