In general, substances can be divided into three states, namely
: 1. Solid (Solid) is a substance that keeps its shape is not changed. Unique shapes are called. No movement Or very little movement And can not penetrate or smaller, including iron, gold, stone, clay, sand, paper, plastic, etc.
2. liquid (Liquid) is a substance that is liquid can flow and mobility. The shape of the container. Can pass through at a constant volume, including water, oil, alcohol, etc.
3. Gas (Gas) is a substance that can be spread by moving faster everywhere. Can see through things very simple and can be compressed to a smaller, too, including gas, oxygen, air, etc.
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