States of Matter

Front

What must happen for a solid to change into a liquid?

Back

The temperature must increase.

Front

How can you return melted chocolate to a solid state?

Back

Cool it in the refrigerator.

Front

What state of matter has a definite shape and definite volume?

Back

Solid.

Front

What must happen for a liquid to change into a gas?

Back

The temperature must increase.

Front

What state of matter is represented by steam?

Back

Gas.

Front

What is the state of matter with no definite shape but a definite volume?

Back

Liquid.

Front

What happens to the particles in a solid when it melts?

Back

They gain energy and move more freely.

Front

What is the process called when a gas turns into a liquid?

Back

Condensation.

Front

What is the process called when a liquid turns into a solid?

Back

Freezing.

Front

What happens to the temperature of a substance during a phase change?

Back

It remains constant until the change is complete.