National Science Olympiad (NSO) Workbooks are designed to familiarize students with the type of questions coming in Olympiad exams. The Workbook contains chapter-wise multiple choice question (MCQs) Bank followed by Achievers Section (Hots) & logical Reasoning followed by Hints and explanation in the end of the book. The NSO Olympiad workbook also contains latest 2020 Olympiad exam paper with hint answers to give recent NSO Olympiad exam understanding. A bubble (OMR) sheet is also given with exercises, so that students can practice Marking answers. It gives complete syllabus question practice and quick recap with self-analysis for great performance in the Olympiads. Table of content: br>Chapter 1: crop production and management br>Chapter 2: Microorganisms br>Chapter 3: synthetic fibres and plastics br>Chapter 4: metals and non-metals br>Chapter 5: coal and petroleum br>Chapter 6: combustion and flame br>Chapter 7: conservation of plants and animals br>Chapter 8: cell br>Chapter 9: Reproduction and endocrine system br>Chapter 10: force and pressure br>Chapter 11: Friction br>Chapter 12: sound br>Chapter 13: Chemical effects of electric Current br>Chapter 14: some natural phenomena br>Chapter 15: light br>Chapter 16: stars and the solar system br>Chapter 17: pollution of air and Water logical Reasoning br>SOF National Science Olympiad - 2020 hints & explanations.