Physical or Chemical Change SC.5.P.9.1

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. Examples include melting, freezing, and evaporating.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. Examples include burning, rusting, and baking.

Front

What happens during wood burning?

Back

Wood burning is a chemical change where wood reacts with oxygen to form ash, smoke, and gases, creating new substances.

Front

What is an example of a physical change?

Back

Evaporating water is an example of a physical change because it changes from liquid to gas without changing its chemical structure.

Front

What is an example of a chemical change?

Back

Spoiling food is an example of a chemical change as it involves the breakdown of food substances into new compounds.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties. Examples include fruit salad and Lucky Charms.

Front

Which of the following is NOT a mixture: Fruit salad, Salt, Lucky Charms?

Back

Salt is NOT a mixture; it is a pure substance.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not create new substances, while a chemical change does.

Front

What is an example of a substance undergoing a physical change?

Back

Melting ice is an example of a substance undergoing a physical change.

Front

What is an example of a substance undergoing a chemical change?

Back

Baking a cake is an example of a substance undergoing a chemical change.