Phase Change

When a substance melts, the kinetic energy _____________.

• decreases
• stays the same
• increases
• decreases then increases

The molecules in this picture are in what phase?

• solid
• liquid
• gas
• plasma

If this substance had kinetic energy ADDED, it would be in what phase?

• solid
• liquid
• gas
• plasma

What is the energy that an object has because it is moving?

• kinetic
• potential
• electric
• wind

What takes place when a liquid changes to a gas?

• condensation
• melting
• evaporation
• freezing

What takes place when a solid changes to a liquid?

• condensation
• melting
• evaporation
• freezing

What is the average kinetic energy of a substance called?

• volume
• temperature
• pressure
• movement

What takes place when a liquid changes to a solid?

• condensation
• melting
• evaporation
• freezing

What takes place when a gas changes to a liquid?

• melting
• freezing
• evaporation
• condensation

What takes place when a solid changes to a liquid?

• condensation
• freezing
• melting
• evaporation