5th Grade Physical and Chemical Changes

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What happens to the molecules during a physical change?

Back

The molecules remain the same; their arrangement may change, but their chemical structure does not.

Front

What happens to the molecules during a chemical change?

Back

The molecules change into different molecules, forming new substances.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

How can you separate a mixture?

Back

You can separate a mixture using methods like filtering, evaporating, or using a magnet.

Front

What is evaporation?

Back

Evaporation is the process by which liquid turns into vapor.

Front

What is an example of a physical change?

Back

Freezing water is an example of a physical change.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change.

Front

Why is dissolving sugar in water a physical change?

Back

Because the sugar can be recovered by evaporation.