The three states of water

THE THREE STATES OF WATER

Water exists in three states: liquid, solid and gas.

• Rain, rivers and oceans are examples of water in a liquid state.
• Ice, snow and hailstones are examples of water in a solid state.
• Water vapor is a gas.

Water can change states.

Water changes from one state to another when it's temperature changes.

• When liquid water is cooled to below 0°C, it changes into ice. This is solidification.
• When ice is heated, it changes into liquid water. This is melting.
• When liquid water is heated, it changes into water vapor. This is evaporation.
• When water vapor cools, it changes into liquid water. This is condensation.