* Physical Change: A change in the form or appearance of a substance, but not its chemical composition.

* Chemical Change: A change that results in the formation of new substances with different chemical properties.

When water condenses, it goes from a gaseous state (water vapor) to a liquid state. The chemical formula of water (H₂O) remains the same throughout the process. Only the arrangement of the water molecules changes.

Here's a simple analogy: Imagine a sculpture made of clay. If you reshape the clay, you're making a physical change. You're not changing the clay itself, just its appearance. Condensation is similar—it's just a change in the form of water, not the water molecule itself.