* Physical Properties: These are characteristics of a substance that can be observed or measured without changing the substance's chemical composition. Examples include color, density, melting point, and boiling point.
* Chemical Properties: These describe how a substance reacts with other substances or changes its chemical composition. Examples include flammability, reactivity with acids, and oxidation.
Reflecting light is simply how a substance interacts with light waves. It doesn't involve the substance undergoing a chemical change.
Here's a simple way to think about it:
* Physical change: Ice melting into water is a physical change. The chemical makeup (H₂O) remains the same; it's just a change in state.
* Chemical change: Burning wood is a chemical change. The wood reacts with oxygen, forming ash, carbon dioxide, and other products, completely altering its chemical composition.
The ability to reflect light depends on:
* The material's structure: The arrangement of atoms and molecules within a substance determines how light interacts with it.
* The wavelength of light: Different wavelengths of light (colors) are reflected or absorbed differently by different materials.
Let me know if you have any other questions!
