How can trickles of surface water dissolve rock and create huge cavesunderground? What are colloids and why are they floating in the milk you drink?How do we ma... » 

How can trickles of surface water dissolve rock and create huge cavesunderground? 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 befound and the various separation techniques scientists use to obtain thematerials they want. Find out what a huge part the material world plays in yourlife Each book in the Material World series looks at a key area of materialsscience covering subjects such as states of matter material characteristicsand behavior the uses of different materials and the technology used to makenew materials or change existing ones for new purposes. «