States of Water

Water exists in three main states: solid, liquid, and:

• Gas

• Plasma

When water freezes, it changes from a liquid to a:

• Solid

• Gas

The process by which a gas changes into a liquid is called:

• Evaporation

• Condensation

Water vapor turning into tiny water droplets forms:

• Dew

• Hail

The temperature at which water boils is:

• 100°C (212°F)

• 0°C (32°F)

The process of a liquid turning into a gas is called:

• Freezing

• Boiling

Water in the atmosphere in the form of ice crystals is known as:

• Hail

• Snow

Water changing directly from a solid to a gas without becoming a liquid first is called:

• Sublimation

• Deposition

The state of water that has the least energy and the most organized molecular structure is:

• Gas

• Solid

The process of a liquid changing into a gas at temperatures below its boiling point is called:

• Evaporation

• Melting