* Color: A piece of paper is white.

* Density: A block of wood floats on water, while a block of metal sinks.

* Melting Point: Ice melts at 0 degrees Celsius.

* Boiling Point: Water boils at 100 degrees Celsius.

* Hardness: Diamond is the hardest known natural material.

* Conductivity: Copper is a good conductor of electricity.

* Solubility: Sugar dissolves in water.

* Odor: Vinegar has a pungent smell.

* Texture: Sandpaper is rough, while silk is smooth.

Let me know if you'd like more examples!