The book, Chemistry is one among the 12 books of the series, Children's Encyclopedia – The World of Knowledge. The subject matter contains a precise, coloured and diagrammatic description of Matter and its Properties, Mass, Volume & Density, Atoms, Molecules & Elements, Compounds & Mixtures, Chemical Reactions and Physical Changes among Solids, Liquids and Gases, etc. Hence dear readers, grab the book as soon as you can, for it's a treasure trove of knowledge and information, which you can use it as a reference material for academic studies or extra curricular activities. Happy Reading and Learning! CONTENTS: 1. Matter 2. Properties of Matter 3. Changing States 4. Mass, Volume and Density 5. Atoms 6. Molecules 7. Elements 8. Properties of Elements 9. Compounds and Mixtures 10. Reactions and Changes 11. Irreversible and Reversible Changes 12. Acids and Bases 13. Solids 14. Liquids 15. Gases 16. Exercises Glossary