Physical and Chemical Changes

Front

What is a physical change?

Back

A physical change is when the same matter is present but in a different shape or form.

Front

What is a chemical change?

Back

A chemical change is when new matter is formed, and the original substance changes into something different.

Front

Which of the following is a chemical change? Cutting bread, Slicing carrots, Melting butter, Soured milk?

Back

Soured milk is a chemical change.

Front

What happens when sugar dissolves in water?

Back

When sugar dissolves in water, a physical change occurs.

Front

What is a clue that a chemical change has occurred?

Back

A change in temperature is a clue that a chemical change has occurred.

Front

Is cutting paper into pieces a chemical or physical change?

Back

Cutting paper into pieces is a physical change.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron.

Front

What does it mean when matter changes state?

Back

When matter changes state, it can change from solid to liquid, liquid to gas, etc., but it remains the same substance.

Front

What is an example of a chemical change in cooking?

Back

Baking a cake is an example of a chemical change because new substances are formed.