Metals and non-metals are two fundamental categories of elements that exhibit distinct physical and chemical properties. Metals are typically hard, shiny, malleable, ductile, and good conductors of heat and electricity. Examples include iron, copper, gold, and aluminium. They tend to lose electrons and form positive ions
Read MoreSubject: ChemistryTopic: Chemical Compounds and Their UsesTime: 1.5 HoursMaximum Marks: 50 Section A: Multiple Choice Questions (1 × 10 = 10 marks) Choose the correct answer from the options provided. Which compound is commonly known as baking soda?a) NaOHb) CaCO₃c) NaHCO₃d) Na₂CO₃ What is the chemical
Read MoreGeneral 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
Read MoreThe 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
Read More.🧬 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
Read MoreDear Students, This question paper is designed to help you thoroughly practice and master the concepts of Polynomials as per the Class 9 Mathematics curriculum. Polynomials form the foundation of algebra and are essential for higher-level mathematics. This assignment covers a wide range of problems—from basic definitions to advanced applications—ensuring
Read MoreSECTION A: Multiple Choice Questions (1 mark each) Choose the correct answer: What is used to measure temperature? (a) Barometer (b) Thermometer (c) Speedometer (d) Altimeter The clinical thermometer contains: (a) Alcohol (b) Mercury (c) Water (d) Lead What is the temperature range of a clinical thermometer? (a) 35°C to 45°C (b) -10°C to 110°C (c) 0°C
Read More1. MULTIPLE CHOICE QUESTIONS (MCQs) The tissue that lines kidney tubules and salivary ducts is: (a) Squamous epithelium (b) Glandular epithelium (c) Cuboidal epithelium (d) Columnar epithelium Muscles that work without our conscious control are: (a) Skeletal (b) Cardiac (c) Smooth (Involuntary) (d) All of these Tissue that connects muscle to bone is known
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The Earth is home to seven continents, each rich with cultural and linguistic diversity. Every country has its own capital city, official currency, and language(s) that reflect its unique identity. For students, travelers, or curious minds, understanding these elements is a gateway to global awareness. Below,
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Ganga Dussehra: Notes for Kids 📅 When is it celebrated? Ganga Dussehra is celebrated on the 10th day (Dashami) of the bright half of the Jyeshtha month (May–June), according to the Hindu lunar calendar. It usually falls in late May or early June. 🌊 What is
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