Page 3 - Curriculum Visions Dynamic Book

Contents
1: Introduction 4 The water cycle 5 A transporting medium 6 A chemical 6 Physical properties of water 8 The nature of water molecules 8 Hydrogen bonding 11 Radioactive water 14
2: States of water 16 Changing between states 17 Evaporation and condensation 18 Boiling 20 Making uses of changes of state 21
3: Physical properties of liquid water 24 Surface tension 25 Capillarity 26 Immiscibility 28 Waterproofing and wetting agents 28 Soap and detergents 30 Compressibility and hydraulics 31 Viscosity 32 Heat conduction and storage 32 Hydraulic power generation 35 Putting out fires 36 Convection of heat 37 Buoyancy 38 Sound 39 Diffusion and stirring 39 Osmosis 40
4: The universal solvent 42 Why water is not quite a “universal solvent” 43 Water at high temperature and pressure 46 Conducting electricity 46 Introducing medicines to the blood 48 Pure liquids and mixed liquids 49 Surface removal of dissolved substances 51 Water reactions that give out heat 52 Water reactions with metals 52 Hard water 55 Breaking up water molecules into hydrogen and oxygen 55 Hydration 56 Acid water 57
Glossary 58
(Left) Interlocking ice crystals on the surface of freezing water. 3