Which is an example of a physical change in a material?

The correct answer encompasses all three processes listed, as they are all examples of physical changes in materials. A physical change occurs when a substance undergoes a change in state or appearance but remains the same chemical substance.

Melting refers to the transformation of a solid into a liquid, such as ice turning into water when heat is applied. This change is physical because the chemical composition of water remains the same throughout the process.

Evaporation is the process where a liquid turns into a gas, such as water becoming steam. Like melting, this transformation does not alter the chemical nature of the water, making it a physical change.

Condensation is the reverse of evaporation, where gas turns into a liquid, such as steam cooling into water droplets. Again, this change is physical as the substance remains water, regardless of its state.

Since all these processes involve changes in state without altering the chemical identity of the material, the appropriate choice is that all of these are examples of physical changes.