6th Science Lesson 2-2 Changes of State Flashcard

Front

How can you increase a substance’s thermal energy?

Back

You can increase the thermal energy of a substance by heating it.

Front

What happens when a substance is cooled?

Back

When a substance is cooled, its thermal energy decreases, its particles slow down, and its temperature decreases.

Front

What is the change in state from a liquid to a solid called?

Back

Freezing

Front

What is the change of a liquid to a gas called?

Back

Vaporization

Front

When does condensation occur?

Back

Condensation occurs when particles in a gas lose enough thermal energy to change state.

Front

What happens during sublimation?

Back

During sublimation, particles of a solid do not pass through the liquid state as they form a gas.

Front

What happens when you heat up a substance?

Back

When you heat up a substance, its thermal energy increases, its particles move faster and its temperature increases.