Composition of Universe

1. Energy

1.1. Kinetic

1.2. Potential

1.3. Photons (Light)

2. Matter

2.1. Solids

2.2. Liquids

2.3. Gases

2.4. Plasma

2.5. Pure Substances

2.5.1. Elements

2.5.1.1. Compounds

2.5.1.2. Mixtures

2.5.1.2.1. Homogeneous

2.5.1.2.2. Heterogeneous

2.6. Density

2.6.1. Volume

2.6.2. Mass