Elements, Compounds, and Mixtures

A mixture is a combination of two or more substances that are not chemically bonded together. Each substance retains its own properties.

A compound is a substance formed when two or more elements are chemically bonded together in a fixed ratio.

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

You can use a magnet to separate iron filings from sand, as iron is magnetic while sand is not.

A molecule is the smallest unit of a chemical compound that retains its chemical properties, consisting of two or more atoms bonded together.

A pure substance is a material that has a constant composition and consistent properties throughout. Examples include elements and compounds.

A compound is made of two or more elements chemically bonded together, while a mixture is a physical combination of substances that can be separated by physical means.