Talk About It! Good job! Now let’s look at a different kind of chart, a flowchart.

The flowchart below shows how matter can change states. Discuss the flowchart with your reading partner. Point to the three states of matter and see what the arrows are telling you about matter. See how gaining or losing energy causes matter to change from one state to another.

• Matter can change states by adding (gaining) or taking away (losing) heat energy.

• The space between molecules increases as heat is added. Heat gives molecules more energy so they move faster, and bounce hard off each other, creating more space between them.