5. The matter and their properties The materials that form the universe: The whole known universe is formed by the same materials. Matter: It is everything that has mas and volume. Substance: It is each one of the different matter types. Properies of matter: -General properties. -Mass. -Volume. -Specific properties.
6. Measures of mater Magnitude : It is any property of matter that you can measure. To measure: It is compare a magnitude with the unit. Internationals sistem of units (S.I.): Almost all the countries of the world have adopted this sistem of units,so that almost everybody measures in the same way.
7. The density Density: It is the relationship between the mass of a body and the volume that it occupies. Mass: It is the quantity of matter that a body has. Weight: It is the force with which the Earth attracts a body. Volume: It is the espace that a body occupies,or how big or small that is,the most important unit is the m 3 ,algthough the smallest bodies are measured in cm 3 .
8. Materials -The objects manufactured with multiple materials. -The growing industrialization demans that we look for new materials to manufacture novel objects or to improve old materials. -Our scientific knowledge also allows us to manufacture substances that have never existed.
![Unit 3:The matter of the universe ,[object Object]](https://image.slidesharecdn.com/unit3naturalscience-101212161203-phpapp02/85/The-matter-of-the-universe-1-320.jpg)
