Why was aluminum once more valuable than gold? Why are some buildings built ongiant springs and where can they be found? Why does a nuclear waste remainhazardou... » 

Why was aluminum once more valuable than gold? Why are some buildings built ongiant springs and where can they be found? Why does a nuclear waste remainhazardous for thousands of years? In this book you will learn about thechemical and physical changes that can occur in materials including chemicaland metal reactions the effect of substances on materials and the varioustypes of physical changes and their causes. Find out what a huge part thematerial world plays in your life Each book in the Material World serieslooks at a key area of materials science covering subjects such as states ofmatter material characteristics and behavior the uses of different materialsand the technology used to make new materials or change existing ones for newpurposes. «