Liquids
* Water: Flows and takes the shape of its container.
* Mercury: A liquid metal at room temperature.
* Oil: A viscous liquid that doesn't easily change shape.
Gases
* Air: A mixture of gases (nitrogen, oxygen, etc.) that expands to fill its container.
* Helium: A lightweight gas used in balloons.
* Carbon dioxide: A colorless gas that is a product of respiration.
Plasma
* Lightning: A superheated, ionized gas.
* The sun: A giant ball of plasma.
* Aurora Borealis: Plasma interacting with Earth's magnetic field.
Other
* Light: A form of electromagnetic radiation.
* Sound: A vibration that travels through matter.
* Heat: Energy transfer due to temperature difference.
Important Note: The distinction between solids, liquids, and gases is based on the arrangement and movement of their particles. Plasma is a fourth state of matter with unique properties.
