This text has been completely rewritten to embrace the new syllabus changes which have taken place since the first edition was published. The book is presented through a progression of topics, beginning with simple concepts and ideas, e.g. the nature of matter and its organization in the structure of the Earth and its atmosphere. The topics then move on to more complex concepts such as atomic structure and the nature of chemical reactions, their uses in industry and the implications to the environment. Each chapter begins with a list of objectives to help the reader focus. Questions are asked throughout the book to help develop skills and each chapter ends with a summary to help aid revision.