Complete Smart Series is a specially designed book aimed to help enhance students’ understanding of scientific concepts. It is a very useful teaching and learning resource. Each topic comprises multiple-choice, short-answers and free response questions. Practices are also made challenging to improve students’ analytical and thinking skills. Final year mock examinations are also provided for reinforcement and to gauge progress and identify where improvements need to be made. This book is especially crafted for Secondary students to excel in their Science examinations