Science - Pure Substances vs. Mixtures (Vocab)

Pure Substance

Substance consisting of 1 type of atom / molecule

Element

Substance made up of 1 type of atom with unique properties; Cannot be further broken down

Compound

Multiple substances that are chemically joined

Molecule

2 or more atoms that are joined

Mixture

Multiple substances that are physically joined

Heterogenous

Uneven mixture of particles that are different sizes

Homogenous

Even mixture of particles that are the same size

Solution

Homogenous mixture; Solute dissolved into a solvent

Solute

Substance that dissolves into another substance

Solvent

Substance that another substance dissolves into (Water is the universal solvent)

Colloid

Substance containing unevenly sized particles, but it’s not visible

Suspension

Evenly mixed when stirred, uneven / un-mixed when left to settle