Review States of Matter

The states of matter can be changed by

• By changing the temperature

• By changing the quantity

• By changing the concentration

The process of changing a solid substance into liquid by heating is called

• Boiling

• Freezing

• Melting

A solid substance can be melted

• By applying heat

• By applying force

• By applying pressure

The melting of a solid substance takes place

• At any temperature

• Below melting point

• At a fixed melting point

The temperature at which a liquid boils

• Melting point

• Boiling point

• Freezing point

The boiling point of water is

• 100 K

The process of changing a gas (or vapours) into a liquid by cooling is

• Sublimation

• Evaporation

• Condensation

Liquids and solids have

• Fixed volume

• Fixed shape

• Fixed pressure

• Steam

• Ice

• Liquid

The process of changing a liquid into solid by cooling is called

• Freezing

• Sublimation

• Condensation