We have put this book in order to agree with the classroom usually followed in the university that can be used in other areas may have a good result, especially as it is in Arabic, taking into account scientific terms as far as possible, include this book on the experiences collected and developed from several sources and includes several chapters Chapter I pH and act brakes, Chapter II Relations water and mineral nutrition chapter III and IV of construction and optical Chapter V separation plant some vehicles using chromatography and breathing Chapter VI and Chapter VII of growth and the tail end of this book has some of the supplements for use in the implementation of the curriculum.