The Perfect Guides for the Lower Secondary Science Book B is a study guide designed to prepare students to take the Lower Secondary Science examinations in Singapore. Book B focuses on the topics Chemistry and Biology. It features specific links to the Science Matters textbooks for easy studying, though there are variations in the order and sequence of topics. Study notes, learning objectives, common errors, a glossary of terms, diagrams, exam tips, revision notes, and worked out questions with analysis of the answers are included. Each topic is followed by a test containing both multiple choice questions and structured questions. Two assessments are included. Answers are included in the back of the book. 300 pages, softcover. Grade 8.