Substances Vs Mixtures Vocabulary

Atom

The smallest particle into which an element can be divided and still be the same element

Element

A pure substance that can not be separated or broken down into simpler substances by physical or chemical means

Molecule

2 or more atoms chemically bonded together. When elements combine they make these.

Compound

A pure substance composed of two or more elements that are chemically combined

Pure Substance

A substance in which there is only one type or particle; includes elements and compounds

Matter

Anything that has mass and takes up space

substance

matter with a composition that is always the same

Mixture

A combination of two or more substances that are not chemically combined

homogeneous mixture

A mixture in which substances are evenly distributed throughout the mixture

heterogeneous mixture

A mixture in which different materials can be distinguished easily

Mass

the amount of matter in an object

Density

mass/volume