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Science

Class 7 Science NCERT Notes – Chapter 2: Exploring Substances – Acidic, Basic, and Neutral (PDF, MindMap, Q&A, Quizzes)

Chapter 2 (Science): Exploring Substances – Acidic, Basic, and Neutral – CBSE Class 7 NCERT Science Detailed Study Notes. 1. Classification of Substances Substances in our environment can be categorized based on their chemical nature into three main groups: Common…

AKS
December 23, 2025

Science

Class 7 Science NCERT Notes – Chapter 1: The Ever-Evolving World of Science (PDF, MindMap, Q&A, Quizzes)

Chapter 1 (Science): The Ever-Evolving World of Science – CBSE Class 7 NCERT Science Detailed Study Notes. 1. The Nature of Science: A Journey of Discovery Science is presented not as a static collection of facts, but as an active…

AKS
December 23, 2025

Biology, Science

Class 9 Science NCERT Notes – Chapter 12: Improvement in Food Resources (PDF, MindMap, Q&A, Quizzes)

Chapter 12 (Biology): Improvement in Food Resources – Class 9 NCERT Science Detailed Study Notes. 1. The Need for Improvement in Food Resources All living organisms require food for development, growth, and health, as it supplies essential proteins, carbohydrates, fats,…

AKS
December 20, 2025

Physics, Science

Class 9 Science NCERT Notes – Chapter 11: Sound (PDF, MindMap, Q&A, Quizzes)

Chapter 11 (Physics): Sound – Class 9 NCERT Science Detailed Study Notes. 1. The Nature of Sound Sound is a form of energy that creates a sensation of hearing in our ears. According to the principle of conservation of energy,…

AKS
December 20, 2025

Science, Physics

Class 9 Science NCERT Notes – Chapter 10: Work and Energy (PDF, MindMap, Q&A, Quizzes)

Chapter 10 (Physics): Work and Energy – Class 9 NCERT Science Detailed Study Notes. 1. The Concept of Work 1.1 Everyday vs. Scientific Definition of Work In daily life, “work” refers to any useful physical or mental labor. Activities like…

AKS
December 20, 2025

Science, Physics

Class 9 Science NCERT Notes – Chapter 9: Gravitation (PDF, MindMap, Q&A, Quizzes)

Chapter 9 (Physics): Gravitation – Class 9 NCERT Science Detailed Study Notes. 1. Introduction to Gravitation 2. Universal Law of Gravitation 3. Free Fall and Acceleration Due to Gravity (g) 4. Mass and Weight Feature Mass (m) Weight (W) Definition…

AKS
December 20, 2025

Physics, Science

Class 9 Science NCERT Notes – Chapter 8: Force and Laws of Motion (PDF, MindMap, Q&A, Quizzes)

Chapter 8 (Physics): Force and Laws of Motion – Class 9 NCERT Science Detailed Study Notes. 1. The Concept of Force 1.1 Historical Perspective and Introduction For centuries, scientists and philosophers believed that rest was the “natural state” of an…

AKS
December 20, 2025

Science, Physics

Class 9 Science NCERT Notes – Chapter 7: Motion (PDF, MindMap, Q&A, Quizzes)

Chapter 7 (Physics): Motion – Class 9 NCERT Science Detailed Study Notes. 1. The Concept of Motion Motion is a fundamental phenomenon observed everywhere, from atoms and molecules to planets and galaxies. An object is perceived to be in motion…

AKS
December 20, 2025

Biology, Science

Class 9 Science NCERT Notes – Chapter 6: Tissues (PDF, MindMap, Q&A, Quizzes)

Chapter 6 (Biology): Tissues – Class 9 NCERT Science Detailed Study Notes. 1. Introduction to Tissues 2. Comparison of Plant and Animal Tissues There are fundamental differences between plant and animal tissues, reflecting their distinct modes of life. Feature Plants…

AKS
December 20, 2025

Science, Biology

Class 9 Science NCERT Notes – Chapter 5: The Fundamental Unit of Life (PDF, MindMap, Q&A, Quizzes)

Chapter 5 (Biology): The Fundamental Unit of Life – Class 9 NCERT Science Detailed Study Notes. 1. The Discovery and History of the Cell 2. Types of Organisms 3. The Structural Organisation of a Cell All living cells possess certain…

AKS
December 19, 2025