1. Change of State: This is the most common example. Water can exist as a solid (ice), liquid (water), or gas (steam). These are all physical changes because the chemical composition (H₂O) remains the same.

2. Cutting or Tearing: Cutting a piece of paper into smaller pieces, or tearing a cloth changes its shape and size but not its chemical makeup.

3. Melting and Freezing: Melting ice into water and freezing water into ice are reversible physical changes.

4. Boiling and Condensation: Boiling water into steam and then condensing the steam back into water are physical changes.

5. Dissolving: Dissolving sugar in water is a physical change because the sugar molecules are simply dispersed in the water. They can be recovered by evaporating the water.

Let me know if you'd like more examples!