States and Properties of Matter

Different forms of matter: solid, liquid, and gas.

The change from a solid to a liquid when heated.

The change from a liquid to a gas when heated.

The temperature at which a solid changes to liquid.

The temperature at which a liquid changes to a gas.

Measure of how hot or cold something is.

A tool used to measure temperature.

Water in the gaseous state.

Describes the structure of solids, liquids, and gases and explains their properties by looking at how their particles behave.

Particles are very close together, packed in a regular pattern, and vibrate in fixed positions.

Particles are close but further apart than in solids. They can move and slide past each other.

Particles are far apart, move freely in all directions at high speed, and are not held together strongly.

Solids maintain their shape because their particles are tightly packed and cannot move much.

Liquids take the shape of their container because their particles can move and slide past each other.

Gases spread out and fill the entire container they occupy because their particles move freely in all directions.

Particles are tightly packed in a regular pattern.

The three main states of matter, each with different properties due to how particles are arranged and move.

Freezing, the process of a liquid changing to a solid when cooled.

A homogeneous mixture where a solute dissolves in a solvent to form a single, uniform substance.

The substance that gets dissolved in a solution.

The substance that dissolves the solute in a solution.