Understanding Changes of State

What is the term used to describe the transition from a solid to a liquid?

• Freezing

• Evaporation

• Condensation

• Melting

Which process is the reverse of melting?

• Boiling

• Solidifying

• Sublimation

• Condensation

What is another term for solidifying, especially when referring to water?

• Evaporating

• Freezing

• Sublimating

• Boiling

How do particles in a solid behave when they gain enough energy?

• They move closer together

• They stop moving

• They move away from each other

• They change into gas particles

What must happen for metals like gold and silver to melt?

• They must be cooled to a low temperature

• They must be heated to a very high temperature

• They must be mixed with water

• They must be exposed to sunlight