Separating materials - Robert Snedden

How can trickles of surface water dissolve rock and create huge caves underground? What are colloids and why are they floating in the milk you drink? How do we make sure that the water that comes from the tap is clean and safe? In this book you will learn the different states in which materials can be found and the various separation techniques scientists use to obtain the materials they want. Find out what a huge part the material world plays in your life! Each book in the 'Material World' series looks at a key area of materials science, covering subjects such as states of matter, material characteristics and behaviour, the uses of different materials, and the technology used to make new materials or change existing ones for new purposes.