All matter is composed of either elements or compounds. Elements are made of only one type of atom, while compounds contain two or more elements chemically bonded together. Matter can also exist as substances, which are either elements or compounds, or as mixtures of multiple substances. Mixtures are not uniform and their components can be separated, while substances cannot be decomposed further. There are two main types of mixtures: homogeneous mixtures which are uniform, and heterogeneous mixtures where the components are not evenly distributed and can be seen separately.

1. Composition of Matter

9. Heterogeneous Mixture Ex:

11. Homogeneous Mixture Ex:

12. Matter Substance Mixture Element Compound Homogeneous Heterogeneous

15. Suspension Examples

17. Tyndall Effect Ex:

18. What do you have? YES YES NO Does it scatter light? YES NO NO Can it be filtered? YES NO NO Does it settle? Suspension Colloid Solution