Phase Changes and Kinetic Theory

What is it called when molecules change from a gas to a liquid?

• freezing

• melting

• sublimation

• condensation

What kind of change is a melting popsicle?

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What does the provided picture best represent?

Quick Review: Which phase change is from gas to liquid?

• freezing

• melting

• condensation

• boiling

What is the phase change of a solid to a liquid?

• freezing
• melting
• boiling
• condensation

Phase change going from Liquid to Solid...

• Melting

• Freezing

• Condensation

• Sublimation

What is an example of evaporation?

• Water boiling
• Water turning into ice
• Chocolate bar turning into liquid chocolate
• Fog forming on a mirror

Transition from a liquid to a gas

• Condensation

• Freezing

• Evaporation

• Melting

What is condensation of water?

• When ice melts to form water vapor

• When water vapor cools down to form liquid water

• When a solid turns directly to a gas without turning into liquid

Gas condenses to a liquid

• Evaporation

• Melting

• Freezing

• Condensation