The Unravelling Science (ICSE) series, consisting of a set of nine course books and nine workbooks for middle school, is based on the latest ICSE 2018 syllabus. The content has been presented in a manner that provides a clear insight of the basic concepts and principles of science. The workbooks in the series complement and supplement the course books by providing extra questions for practice and revision of concepts learned. A variety of additional objective and subjective questions of various types???multiple choice questions, fill in the blanks, match the following, one-word answers, true/false, find the odd one out, distinguish between, short answer questions, long answer questions???have been included in the workbooks. The workbooks provide adequate space alongside each question asked so that students can write the answers and, if needed, draw diagrams and work out numerical questions. The order of chapters and coverage in each workbook correspond with the respective course books.