Science Class 7

Important Questions For All Chapters – Science Class 7 Electricity: Circuits and their Components Short Questions 1. What is an electric cell? Answer: A portable source of electrical energy. 2.What are the two terminals of an electric cell called? Answer: Positive (+ve) and negative (–ve). 3.What is a battery? Answer: A combination of two or […]

Important Questions For All Chapters – Science Class 7 Exploring Substances: Acidic, Basic, and Neutral Short Questions 1. What is an acid? Answer: An acid is a substance that turns blue litmus paper red. 2.What is a base? Answer: A base is a substance that turns red litmus paper blue. 3.What is a neutral substance? […]

Important Questions For All Chapters – Science Class 7 The Ever-Evolving World of Science Short Questions 1.  Why do some fruits taste sour? Answer: Because they contain acids. 2. What makes a lamp glow? Answer: Electricity flowing through a bulb. 3.Can ice melting be reversed? Answer: Yes, by freezing water. 4.How does water from the […]

Chapter 1 – The Ever-Evolving World of Science Chapter 2 – Exploring Substances: Acidic, Basic, and Neutral Chapter 3 – Electricity: Circuits and their Components Chapter 4 – The World of Metals and Non-metals Chapter 5 – Changes Around Us: Physical and Chemical Chapter 6 – Adolescence: A Stage of Growth and Change Chapter 7 […]

Notes Science New Book 2025-26 Notes Science Curiosity Notes Science Old Book Notes Class 7 Science

Notes For All Chapters – Science Curiosity Class 7 Earth, Moon, and the Sun 1. Introduction Rashmika observed that shadows of coconut trees are long in the morning and shorter in the afternoon. She thought this happened because the Sun moves across the sky. But she also remembered that Earth moves around the Sun. This […]

Notes For All Chapters – Science Curiosity Class 7 Light: Shadows and Reflections 1. Sources of Light Luminous Objects: Produce their own light (e.g., Sun, stars, fireflies, bulbs). Non-Luminous Objects: Reflect light from other sources (e.g., Moon reflects sunlight). Natural Sources: Sun, stars, lightning. Artificial Sources: Fire, candles, LED bulbs. LED Lamps: Energy-efficient, long-lasting, eco-friendly; […]

Notes For All Chapters – Science Curiosity Class 7 Life Processes in Plants 1. Plant Growth Plants grow by developing new leaves, branches, increasing height, and thickening stems. Essential Factors: Water: Absorbed by roots from soil, keeps plants hydrated. Sunlight: Provides energy for growth. Nutrients: Minerals from soil support growth. 2. Photosynthesis Definition: The process […]

Notes For All Chapters – Science Curiosity Class 7 Life Processes in Animals 1. Life Processes Essential for survival: Nutrition, Respiration, Excretion, Reproduction. Focus: Nutrition (digestion) and Respiration in animals. 2. Nutrition in Animals Food provides energy; complex components (carbohydrates, proteins, fats) are broken down in the alimentary canal (mouth to anus). 3. Human Digestive […]

Notes For All Chapters – Science Curiosity Class 7 Measurement of Time and Motion 1. Measurement of Time Ancient Timekeeping Devices: Sundial: Uses shadows from sunlight to tell time. Water Clock: Measures time by water flow (outflow or floating bowl types, e.g., Ghatika-yantra). Hourglass: Time based on sand flow. Candle Clock: Time marked by burning […]

Notes For All Chapters – Science Curiosity Class 7 Heat Transfer in Nature 1. Conduction of Heat Definition: Heat transfers from hotter to colder parts of an object without particle movement. Good Conductors: Metals (e.g., steel, aluminum) allow heat to pass easily; used in cooking utensils. Poor Conductors (Insulators): Wood, glass, clay, air; used in […]

Notes For All Chapters – Science Curiosity Class 7 Adolescence: A Stage of Growth and Change 1. Definition and Significance Adolescence: Transitional phase from childhood to adulthood (ages 10-19), marked by rapid growth and preparation for reproduction. Humans mature during adolescence to develop reproductive capabilities, similar to plants maturing to produce seeds. Life stages: Infancy, […]

Notes For All Chapters – Science Curiosity Class 7 Changes Around Us: Physical and Chemical 1. Types of Changes Physical Changes: Change in appearance (shape, size, state) but no new substance formed. Examples: Melting ice, folding paper, boiling water, inflating a balloon. Chemical Changes: New substances formed through a chemical reaction. Examples: Burning wood, rusting […]

Notes For All Chapters – Science Curiosity Class 7 The World of Metals and Non-metals 1. Properties of Materials Malleability Definition: Ability to be beaten into thin sheets. Metals: Copper, aluminium, iron are malleable (e.g., aluminium foil, silver foil). Non-metals: Coal, sulfur are brittle; wood is neither malleable nor brittle. Exceptions: Sodium, potassium (soft metals); […]

Notes For All Chapters – Science Curiosity Class 7 Electricity: Circuits and their Components 1. Uses of Electricity Electricity powers 1. cooking (e.g., microwave), 2.lighting (e.g., bulbs), 3.transportation (e.g., trains), 4. heating/cooling (e.g., AC), 5.entertainment (e.g., TV), 6.communication (e.g., phone), 7. and others (e.g., computer). Grouping: By location (home, school), function (daily needs, fun), or […]

Notes For All Chapters – Science Curiosity Class 7 Exploring Substances: Acidic, Basic, and Neutral Introduction This chapter explains acidic, basic, and neutral substances. It begins with a science fair where a white paper revealed a message when sprayed with a liquid, sparking curiosity about substances that change color when mixed. 1. Nature – Our […]

Notes For All Chapters – Science Curiosity Class 7 The Ever-Evolving World of Science 1. Properties of Materials What to Explore: Why are some fruits sour? (This relates to acids and chemical properties.) What happens when you wash a turmeric (haldi) stain on clothes? (This involves chemical reactions.) Activities: Experiment with batteries, lamps, and wires […]

Chapter 1 – The Ever-Evolving World of Science Chapter 2 – Exploring Substances: Acidic, Basic, and Neutral Chapter 3 – Electricity: Circuits and their Components Chapter 4 – The World of Metals and Non-metals Chapter 5 – Changes Around Us: Physical and Chemical Chapter 6 – Adolescence: A Stage of Growth and Change Chapter 7 […]

MCQ Science New Book 2025-26 MCQ Science Curiosity MCQ Science Old Book MCQ Class 7 Science

MCQ For All Chapters – Science Curiosity Class 7 Earth, Moon, and the Sun

MCQ For All Chapters – Science Curiosity Class 7 Earth, Moon, and the Sun

MCQ For All Chapters – Science Curiosity Class 7 Light: Shadows and Reflections

MCQ For All Chapters – Science Curiosity Class 7 Light: Shadows and Reflections

MCQ For All Chapters – Science Curiosity Class 7 Life Processes in Plants

MCQ For All Chapters – Science Curiosity Class 7 Life Processes in Plants

MCQ For All Chapters – Science Curiosity Class 7 Life Processes  in Animals

MCQ For All Chapters – Science Curiosity Class 7 Life Processes  in Animals

MCQ For All Chapters – Science Curiosity Class 7 Measurement of Time and Motion

MCQ For All Chapters – Science Curiosity Class 7 Measurement of Time and Motion

MCQ For All Chapters – Science Curiosity Class 7 Heat Transfer in Nature

MCQ For All Chapters – Science Curiosity Class 7 Heat Transfer in Nature

MCQ For All Chapters – Science Curiosity Class 7 Adolescence: A Stage of Growth and Change

MCQ For All Chapters – Science Curiosity Class 7 Adolescence: A Stage of Growth and Change

MCQ For All Chapters – Science Curiosity Class 7 Changes Around Us: Physical and Chemical

MCQ For All Chapters – Science Curiosity Class 7 Changes Around Us: Physical and Chemical