5.P.2.3 Chemical and Physical Changes

Front

What is a chemical change?

Back

A chemical change is a process where one or more substances are transformed into different substances with new properties.

Front

What is a physical change?

Back

A physical change is a process that alters the form or appearance of a substance but does not change its chemical composition.

Front

Give an example of a chemical change.

Back

An apple turning brown is an example of a chemical change.

Front

Give an example of a physical change.

Back

Making a paper airplane is an example of a physical change.

Front

What happens to wood when it burns?

Back

When wood burns, it undergoes a chemical change and releases gases as smoke.

Front

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

Back

A chemical change results in the formation of new substances, while a physical change does not change the substance's chemical identity.

Front

What is an example of a substance being formed?

Back

Wood burning is an example of a different substance being formed.

Front

What role does heat play in physical changes?

Back

Heat can cause physical changes by adding or removing energy, such as melting ice into water.

Front

What is an example of heat causing a physical change in water?

Back

When ice melts into water, heat is added, causing a physical change.

Front

What is an example of a chemical change in cooking?

Back

Baking a pie involves chemical changes as ingredients react to form new substances.