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 changing 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

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning wood is an example of a chemical change.

Front

What happens to substances during a chemical change?

Back

During a chemical change, substances react with each other to form new substances.

Front

What is rust?

Back

Rust is a chemical change that occurs when iron reacts with oxygen and moisture.

Front

What does it mean to decay?

Back

To decay means to break down into simpler substances, often referring to dead plants and animals.

Front

What is the result of a chemical change?

Back

The result of a chemical change is the formation of one or more new substances.

Front

What is an example of a physical change in the kitchen?

Back

Chopping vegetables is an example of a physical change.

Front

What is an example of a chemical change in cooking?

Back

Baking a cake is an example of a chemical change.