Category: Notes

Transportation in Animals and Plants Revision

Transportation in Animals and Plants CBSE Class 7 Science Revision Notes

🌟 Why Plants and Animals Need a Transportation System? All living beings need food, oxygen, and water to survive. These must reach each cell of the body for proper functioning. A transport system delivers nutrients, gases, and removes wastes. Animals use blood and vessels, plants use

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Reaching the Age of Adolescence Quick Revision Notes

Reaching the Age of Adolescence – Class 8 Science Notes | Download PDF

Introduction Adolescence is the stage of life between childhood and adulthood. It usually happens between the ages of 11 and 19. Children at this age are called teenagers because these years fall in the “teens.” During this period, the body becomes capable of reproduction and undergoes

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physics-formulae

Class 9th Physics Formula Sheet – Quick Revision

Chapter 1: Motion Brief: Motion describes how objects move – speed, velocity, acceleration, and equations of motion. Formulas & Explanations: Speed – how fast an object moves: s = speed, d = distance, t = time. Velocity – speed with direction: Acceleration – change of velocity

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Quick Notes and Formulas

Class 9 Physics Chapter: Gravitation (Quick Notes and Formulas)

Centripetal Force Force acting towards the centre of circular path. Example: Moon revolves around Earth due to Earth’s centripetal force. Newton’s Observations Apple falls because Earth attracts it. Apple also attracts Earth (Newton’s 3rd law). Conclusion: All objects attract each other → Gravitational Force. Universal Law

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LIGHT-Notes

NCERT Class 8 Science – LIGHT | Notes for Quick Revision

What Makes Things Visible? We see objects when light from them enters our eyes. Two ways light reaches our eyes: Luminous objects → Emit their own light (Sun, candle, lamp). Illuminated objects → Reflect light from another source (Moon, book, table). In darkness → no light,

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From Trade to Territory The Company Establishes Power

From Trade to Territory The Company Establishes Power Notes – Class 8th

The Rise of the East India Company in India Entry of the East India Company In 1600, Queen Elizabeth I gave the English East India Company the exclusive right to trade with the East. The Company searched for regions where production costs were low. But it

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Class 10 Science: Chemical Reactions and Equations Question Paper

Section A – Very Short Answer Questions (1 × 5 = 5 Marks) (Answer each question in one sentence) Define a chemical reaction. Give one example each of an exothermic and an endothermic reaction. What is the difference between a physical change and a chemical change?

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List of Chemical Compounds and Their Uses

General Chemical Names and Formulas Everyday Substances General Name Chemical Name Formula Water Hydrogen monoxide H₂O Common Salt / Table Salt Sodium Chloride NaCl Sand / Quartz Silicon dioxide SiO₂ Marble / Limestone Calcium Carbonate CaCO₃ Washing Soda Sodium Carbonate Na₂CO₃ Caustic Soda Sodium Hydroxide NaOH

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Acids, Bases and Salts Class 7 Notes for Quick Revision – CBSE Board Science

The Taste Behind Food: Acids & Bases Ever wondered why lemons taste sour or soap feels bitter? It’s due to the presence of acids and bases in them. Acids Acids are substances that release hydrogen ions (H⁺) when dissolved in water. They usually taste sour. They

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Class 9th Science Notes – The Fundamental Unit of Life – CBSE, IB & ICSE

.🧬 The Fundamental Unit of Life – Detailed Notes (Class 9) 🧠 Why Study Cells? Every living being, from a tiny bacterium to a huge whale, is made up of cells. These cells are the building blocks of life. Just like bricks form buildings, cells form

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