Physical & 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 occurs when one or more substances are transformed into entirely new substances with different properties.

Front

Give an example of a physical change.

Back

Boiling water is an example of a physical change.

Front

Give an example of a chemical change.

Back

Rusting of iron is an example of a chemical change.

Front

What happens to the chemical composition of a substance during a physical change?

Back

The chemical composition remains the same during a physical change.

Front

What happens to the chemical composition of a substance during a chemical change?

Back

The chemical composition changes during a chemical change, resulting in new substances.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more different elements chemically bonded together.

Front

What is the atomic symbol for carbon?

Back

The atomic symbol for carbon is C.

Front

What is an example of a compound?

Back

Carbon dioxide (CO2) is an example of a compound.

Front

What is the process of freezing water called?

Back

The process of freezing water is called solidification.