CTET (Central Teacher Eligibility Test) is a competitive exam for individuals aspiring to become primary and upper primary school teachers in India. The Paper 2 of CTET focuses on Science and Social Studies. Here are some suggested books to prepare for these sections:

Science:
1. NCERT Books: The National Council of Educational Research and Training (NCERT) books are considered the best resource for CTET preparation. NCERT Science books for classes 6 to 8 provide a comprehensive coverage of the syllabus and are highly recommended.
2. "Science for CTET" by Pearson: This book is specifically designed for CTET preparation and covers all the topics in a structured manner. It includes practice questions, solved examples, and previous years' question papers.
3. "Environmental Studies: From Crisis to Cure" by R.Rajagopalan: This book focuses on the environmental aspect of the Science section and provides a detailed understanding of environmental issues and their solutions. It also includes practice questions and case studies.
4. "Teaching of Science: A Practical Approach" by S.C. Aggarwal and S.K. Bhatnagar: This book provides practical strategies and techniques for teaching Science effectively. It covers various pedagogical aspects and is helpful for understanding the teaching methodologies.

Social Studies:
1. NCERT Books: NCERT Social Studies books for classes 6 to 8 are highly recommended for CTET preparation. These books cover topics such as History, Geography, Civics, and Economics in a detailed and coherent manner.
2. "Social Studies for CTET" by Disha Publication: This book is specifically designed for CTET preparation and covers all the topics in a concise and organized manner. It includes practice questions, solved examples, and previous years' question papers.
3. "Social Science: Content and Pedagogy" by Dr. Alok Kumar and Dr. Shalini Punjabi: This book provides a comprehensive understanding of the content and pedagogy of Social Studies. It covers various teaching methods, assessment techniques, and lesson planning strategies.
4. "History of Modern India" by Bipan Chandra: This book is helpful for gaining a deeper understanding of the history of modern India. It covers the period from the advent of European powers to the present day and includes important events, personalities, and movements.

These books provide a strong foundation and cover the syllabus comprehensively. It is important to read and understand the concepts thoroughly and practice questions from these books. Additionally, referring to previous years' question papers and taking mock tests will help in familiarizing with the exam pattern and improving time management skills.