# Class 7 Science Solutions | SwaVid Browse NCERT science solutions for Class 7, chapter by chapter. Canonical: https://www.swavid.com/science/class/7 Source: https://swavid.com/science/class/7 # Chapters, NCERT solutions, and practice ## The Ever-Evolving World of Science ## The Ever-Evolving World of Science ## Exploring Substances: Acidic, Basic, and Neutral ## Exploring Substances: Acidic, Basic, and Neutral ## Electricity: Circuits and their Components ## Electricity: Circuits and their Components ## The World of Metals and Non-metals ## The World of Metals and Non-metals ## Changes Around Us: Physical and Chemical ## Changes Around Us: Physical and Chemical ## Adolescence: A Stage of Growth and Change ## Adolescence: A Stage of Growth and Change ## Heat Transfer in Nature ## Heat Transfer in Nature ## Measurement of Time and Motion ## Measurement of Time and Motion ## Life Processes in Animals ## Life Processes in Animals ## Life Processes in Plants ## Life Processes in Plants ## Light: Shadows and Reflections ## Light: Shadows and Reflections ## Earth, Moon, and the Sun ## Earth, Moon, and the Sun ## If a chapter feels harder than it should, find the missing idea first. Class 7 Science Pick a chapter for concepts, practice questions, and worked NCERT answers. 12 chapters to explore One route. Three useful ways in. Chapter 1 What is Science? · The Dynamic Nature of Scientific Knowledge · Curiosity: The Spark of Science +4 Chapter 1 Chapter 2 Introduction to Acids, Bases, and Neutral Substances · Indicators · Natural Indicators Around Us +6 Chapter 2 Chapter 3 Electric Current and Circuit Components · Electric Cell and Battery · Electric Bulb and Switch +4 Chapter 3 Chapter 4 Elements: Metals and Non-metals · Physical Properties of Metals · Physical Properties of Non-metals +5 Chapter 4 Chapter 5 What are Changes? · Physical Changes · Chemical Changes +4 Chapter 5 Chapter 6 Adolescence and Puberty · Hormones: The Chemical Messengers · Physical Changes During Puberty +4 Chapter 6 Chapter 7 Understanding Heat and Temperature · Conduction: Heat Transfer in Solids · Convection: Heat Transfer in Fluids +4 Chapter 7 Chapter 8 Understanding Motion · Types of Motion · Speed - The Rate of Motion +5 Chapter 8 Chapter 9 Nutrition in Animals · Human Digestive System · Respiration in Animals +5 Chapter 9 Chapter 10 Photosynthesis: The Food-Making Process · Respiration in Plants · Transport of Water and Minerals (Xylem) +3 Chapter 10 Chapter 11 Rectilinear Propagation of Light · Formation of Shadows · Characteristics of Shadows +4 Chapter 11 Chapter 12 Celestial Objects · Earth's Motions: Rotation and Revolution · Phases of the Moon +4 Chapter 12 A better first move SwaVid's Learning Debt Identifier helps map the prerequisite before practice turns into guessing. ## Key Links - [NCERT Science](https://swavid.com/science) - [Start the first chapter](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Check a prerequisite](https://swavid.com/learning-debt-identifier) - [Start the first chapter](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Check a prerequisite](https://swavid.com/learning-debt-identifier) - [The Ever-Evolving World of Science](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Concepts](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Practice](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science/ncert-solutions) - [The Ever-Evolving World of Science](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Practice set Practice](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/the-ever-evolving-world-of-science) - [Exploring Substances: Acidic, Basic, and Neutral](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral) - [Concepts](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral) - [Practice](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral/ncert-solutions) - [Exploring Substances: Acidic, Basic, and Neutral](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral) - [Practice set Practice](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/exploring-substances-acidic-basic-and-neutral) - [Electricity: Circuits and their Components](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components) - [Concepts](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components) - [Practice](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components/ncert-solutions) - [Electricity: Circuits and their Components](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components) - [Practice set Practice](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/electricity-circuits-and-their-components) - [The World of Metals and Non-metals](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals) - [Concepts](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals) - [Practice](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals/ncert-solutions) - [The World of Metals and Non-metals](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals) - [Practice set Practice](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/the-world-of-metals-and-non-metals) - [Changes Around Us: Physical and Chemical](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical) - [Concepts](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical) - [Practice](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical/ncert-solutions) - [Changes Around Us: Physical and Chemical](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical) - [Practice set Practice](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/changes-around-us-physical-and-chemical) - [Adolescence: A Stage of Growth and Change](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change) - [Concepts](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change) - [Practice](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change/ncert-solutions) - [Adolescence: A Stage of Growth and Change](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change) - [Practice set Practice](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/adolescence-a-stage-of-growth-and-change) - [Heat Transfer in Nature](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature) - [Concepts](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature) - [Practice](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature/ncert-solutions) - [Heat Transfer in Nature](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature) - [Practice set Practice](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/heat-transfer-in-nature) - [Measurement of Time and Motion](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion) - [Concepts](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion) - [Practice](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion/ncert-solutions) - [Measurement of Time and Motion](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion) - [Practice set Practice](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/measurement-of-time-and-motion) - [Life Processes in Animals](https://swavid.com/science/class/7/chapter/life-processes-in-animals) - [Concepts](https://swavid.com/science/class/7/chapter/life-processes-in-animals) - [Practice](https://swavid.com/science/class/7/chapter/life-processes-in-animals/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/life-processes-in-animals/ncert-solutions) - [Life Processes in Animals](https://swavid.com/science/class/7/chapter/life-processes-in-animals) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/life-processes-in-animals) - [Practice set Practice](https://swavid.com/science/class/7/chapter/life-processes-in-animals/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/life-processes-in-animals/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/life-processes-in-animals) - [Life Processes in Plants](https://swavid.com/science/class/7/chapter/life-processes-in-plants) - [Concepts](https://swavid.com/science/class/7/chapter/life-processes-in-plants) - [Practice](https://swavid.com/science/class/7/chapter/life-processes-in-plants/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/life-processes-in-plants/ncert-solutions) - [Life Processes in Plants](https://swavid.com/science/class/7/chapter/life-processes-in-plants) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/life-processes-in-plants) - [Practice set Practice](https://swavid.com/science/class/7/chapter/life-processes-in-plants/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/life-processes-in-plants/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/life-processes-in-plants) - [Light: Shadows and Reflections](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections) - [Concepts](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections) - [Practice](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections/practice-questions) - [Solutions](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections/ncert-solutions) - [Light: Shadows and Reflections](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections) - [Concept cards Concepts](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections) - [Practice set Practice](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections/practice-questions) - [NCERT solutions Solutions](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections/ncert-solutions) - [Begin with the idea](https://swavid.com/science/class/7/chapter/light-shadows-and-reflections) - [Earth, Moon, and the Sun](https://swavid.com/science/class/7/chapter/earth-moon-and-the-sun) - [Concepts](https://swavid.com/science/class/7/chapter/earth-moon-and-the-sun) - 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