Front

What is a mixture?

Back

A combination of two or more substances that can be separated by physical processes.

Front

What is an element?

Back

A substance made of atoms that are all alike.

Front

What is a chemical change?

Back

A change that transforms a substance into a new substance.

Front

What are compounds?

Back

Substances made from a combination of two or more elements.

Front

What is matter made up of?

Back

All matter is made up of atoms.

Front

What is a pure substance?

Back

A material that has a constant composition and consistent properties.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout.

Front

What is a heterogeneous mixture?

Back

A mixture that has a non-uniform composition.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not change the substance's identity, while chemical changes do.