1. Melting Ice: Ice (solid water) changes to liquid water. The chemical makeup (H₂O) remains the same, but the state of matter changes.

2. Boiling Water: Liquid water turns into water vapor (gas). Again, the chemical composition doesn't change, only the physical state.

3. Crushing a Can: A can is deformed but still remains aluminum. The chemical makeup isn't altered.

4. Cutting Paper: A sheet of paper is divided into smaller pieces, but it remains paper. The chemical composition hasn't changed.

5. Mixing Salt and Water: Salt dissolves in water, creating a saltwater solution. The salt and water are still present, just mixed together.

6. Freezing Juice: Liquid juice transforms into solid ice, but the chemical composition remains the same.