Arya Study Centre

Definitions on Science Subject Biology Biology: Biology is the branch of science that studies living organisms and life processes. Example: Studying plants and animals is biology. Living Organism: A living organism is any being that has life and can grow and reproduce. Example: Humans are living organisms. Non-living Thing: Non-living things do not have life and cannot grow or reproduce. Example: A stone is a non-living thing. Cell: A cell is the smallest unit of life in all living organisms. Example: The human body is made up of cells. Tissue: A tissue is a group of similar cells that work together to perform a function. Example: Muscle tissue helps in movement. Organ: An organ is made of different tissues working together to perform a specific function. Example: The heart is an organ. Organ System: An organ system is a group of organs working together to perform a major function. Example: The digestive system helps in digestion. Growth: G...

Definitions on Science Subject Chemistry Chemistry: Chemistry is the branch of science that studies substances, their composition, and their properties. Example: Studying how salt dissolves in water is chemistry. Matter: Matter is anything that has mass and occupies space. Example: Air and water are forms of matter. Element: An element is a pure substance made of only one kind of atom. Example: Oxygen is an element. Atom: An atom is the smallest unit of an element that takes part in a chemical reaction. Example: A hydrogen atom is very small. Molecule: A molecule is formed when two or more atoms join together. Example: A water molecule is made of hydrogen and oxygen. Compound: A compound is a substance formed when two or more elements chemically combine. Example: Water is a compound. Mixture: A mixture is made by mixing two or more substances without chemical bonding. Example: Sand and salt mixed together form a mixture. Solution: A solutio...

Definitions on Science Subject Physics  Physics: Physics is the branch of science that studies matter, energy, force, and motion. Example: The study of how a ball moves when kicked comes under physics. Matter: Matter is anything that has mass and occupies space. Example: Air, water, and stone are forms of matter. Mass: Mass is the amount of matter present in an object. Example: A brick has more mass than a book. Volume: Volume is the amount of space occupied by an object. Example: A bottle occupies more volume than a cup. Density: Density is the mass of an object per unit volume. Example: Iron is denser than wood, so it sinks in water. Force: Force is a push or pull that can change the shape or motion of an object. Example: Pushing a door to open it is applying force. Motion: Motion is the change in position of an object with time. Example: A moving car is in motion. Rest: An object is said to be at rest if it does not change its positio...

Topic :  Human body What is the human body? The human body is made up of many parts that work together. Name the main parts of the body. The main parts of the body are the head, neck, trunk, arms, and legs. What is the head? The head is the topmost part of the human body. What are eyes used for? Eyes are used to see objects around us. What do ears help us do? Ears help us hear different sounds. What is the function of the nose? The nose helps us breathe and smell. What does the mouth do? The mouth helps us eat food and speak. What are teeth used for? Teeth help us chew and bite food. How many sense organs do we have? We have five sense organs in our body. Name the five sense organs. The five sense organs are eyes, ears, nose, tongue, and skin. What does the tongue do? The tongue helps us taste different kinds of food. What is skin? Skin covers and protects our entire body. What is the brain? The brain controls all the activities o...

Animals and Their Homes 🐾 Animals and Their Homes Score: 0 / 0

Animals & Their Babies Quiz 🐾 Animals & Their Babies Quiz Score: 0 / 0

Story :  The Honest Student Ravi was a student of Class 7 in Green Valley School. He was known by his teachers and classmates as a quiet and hardworking boy. Ravi was not the topper of his class, but he always completed his work on time and followed the rules. What made him special was his honesty. One day, Ravi was walking to school when he saw a wallet lying on the road near the bus stop. He picked it up and looked around, but no one was there. When he opened the wallet, he found some money, an identity card, and a few important papers. Ravi was surprised to see that the wallet contained a large amount of money. For a moment, he thought about how useful the money could be for him. His family was not very rich, and he often wished for new books and clothes. However, Ravi quickly remembered what his parents had taught him. His father always said, “Honesty is the greatest wealth.” Ravi decided that the wallet did not belong to him, and he had no right to keep it. He took the wall...

हिंदी व्याकरण 1. संज्ञा (भेदों के साथ) परिभाषा: किसी व्यक्ति, वस्तु, स्थान, प्राणी, भाव या अवस्था के नाम को संज्ञा कहते हैं। संज्ञा के भेद (1) व्यक्तिवाचक संज्ञा परिभाषा: किसी विशेष व्यक्ति, स्थान या वस्तु का नाम। उदाहरण + वाक्य: राम – राम स्कूल जाता है। सीता – सीता गीत गाती है। दिल्ली – दिल्ली भारत की राजधानी है। (2) जातिवाचक संज्ञा परिभाषा: किसी जाति या वर्ग का सामान्य नाम। उदाहरण + वाक्य: लड़का – लड़का खेल रहा है। पुस्तक – यह पुस्तक नई है। पेड़ – पेड़ हमें छाया देता है। (3) भाववाचक संज्ञा परिभाषा: भाव, गुण, दशा या अवस्था का नाम। उदाहरण + वाक्य: प्रेम – प्रेम सबसे बड़ा गुण है। ईमानदारी – ईमानदारी से सफलता मिलती है। खुशी – मुझे बहुत खुशी हुई। (4) द्रव्यवाचक संज्ञा परिभाषा: जिस पदार्थ को तौला या मापा जा सके। उदाहरण + वाक्य: पानी – पानी जीवन के लिए आवश्यक है। दूध – दूध स्वास्थ्य के लिए अच्छा है। सोना – सोना कीमती धातु है। (5) समूहवाचक संज्ञा परिभाषा: किसी समूह का नाम। उदाहरण + वाक्य: झुंड – पक्षियों का झुंड उड़ रहा है। सेना – सेना देश की रक्षा ...

NCERT Class 2 Maths – 50 Questions with solutions Chapter 1: What Is Long, What Is Round? Q1. Which object is round: a ball or a box? (कौन-सी वस्तु गोल है: गेंद या डिब्बा?) Solution (English): A ball is round, a box has flat sides. 👉 Answer: Ball Q2. Which object is long: a rope or a coin? (कौन-सी वस्तु लंबी है: रस्सी या सिक्का?) Solution (English): A rope is long. 👉 Answer: Rope Q3. Name one round object at home. (घर की एक गोल वस्तु का नाम बताइए।) Solution (English): A plate is round. 👉 Answer: Plate Q4. Name one long object in school. (स्कूल की एक लंबी वस्तु का नाम बताइए।) Solution (English): A ruler is long. 👉 Answer: Ruler Q5. Draw a round shape. (एक गोल आकृति बनाइए।) Solution (English): A circle is a round shape. 👉 Drawing activity Chapter 2: Counting in Groups Q6. Count by 2s: 2, 4, __, __ (2-2 करके गिनिए: 2, 4, __, __) Solution (English): Add 2 each time. 👉 Answer: 6, 8 Q7. Count by 5s: 5, 10, __, __ (5-5 करके गिनिए: 5, 10, __, __) Solution (English): Add...

NCERT Class 5 Maths – 50 Questions with solutions Chapter 1: The Fish Tale Q1. Write the number name of 7,05,312. (7,05,312 का संख्या नाम लिखिए।) Solution (English): 7,05,312 = Seven lakh five thousand three hundred twelve 👉 Answer: Seven lakh five thousand three hundred twelve Q2. Write 4,23,615 in expanded form. (4,23,615 को विस्तारित रूप में लिखिए।) Solution (English): 4,00,000 + 20,000 + 3,000 + 600 + 10 + 5 👉 Answer: Expanded form written Q3. Which is greater: 6,54,321 or 6,45,231? (6,54,321 और 6,45,231 में कौन बड़ा है?) Solution (English): Compare ten-thousands: 54,000 > 45,000 👉 Answer: 6,54,321 Q4. Write the smallest 6-digit number. (सबसे छोटी 6 अंकों की संख्या लिखिए।) Solution (English): The smallest 6-digit number is 1,00,000 👉 Answer: 1,00,000 Q5. Write the largest 5-digit number. (सबसे बड़ी 5 अंकों की संख्या लिखिए।) Solution (English): The largest 5-digit number is 99,999 👉 Answer: 99,999 Chapter 2: Shapes and Angles Q6. How ma...

NCERT Class 5 Maths – 50 Questions with solutions Chapter 1: The Fish Tale Q1. Write the number name of 7,05,312. (7,05,312 का संख्या नाम लिखिए।) Solution (English): 7,05,312 = Seven lakh five thousand three hundred twelve 👉 Answer: Seven lakh five thousand three hundred twelve Q2. Write 4,23,615 in expanded form. (4,23,615 को विस्तारित रूप में लिखिए।) Solution (English): 4,00,000 + 20,000 + 3,000 + 600 + 10 + 5 👉 Answer: Expanded form written Q3. Which is greater: 6,54,321 or 6,45,231? (6,54,321 और 6,45,231 में कौन बड़ा है?) Solution (English): Compare ten-thousands: 54,000 > 45,000 👉 Answer: 6,54,321 Q4. Write the smallest 6-digit number. (सबसे छोटी 6 अंकों की संख्या लिखिए।) Solution (English): The smallest 6-digit number is 1,00,000 👉 Answer: 1,00,000 Q5. Write the largest 5-digit number. (सबसे बड़ी 5 अंकों की संख्या लिखिए।) Solution (English): The largest 5-digit number is 99,999 👉 Answer: 99,999 Chapter 2: Shapes and Angles Q6. How many sides does a hexagon ...

50 NCERT Class 3 Maths questions with solutions Chapter 1: Where to Look From Q1. How many corners does a square have? (एक वर्ग के कितने कोने होते हैं?) Solution (English): A square has 4 sides and 4 corners. 👉 Answer: 4 corners Q2. Name one object in your classroom that looks like a cube. (कक्षा में एक ऐसी वस्तु बताइए जो घन जैसी दिखती हो।) Solution (English): A dice looks like a cube because all sides are equal. 👉 Answer: Dice Q3. How many sides does a triangle have? (त्रिभुज की कितनी भुजाएँ होती हैं?) Solution (English): A triangle has 3 sides. 👉 Answer: 3 sides Q4. Which shape looks like a ball? (कौन-सी आकृति गेंद जैसी होती है?) Solution (English): A ball looks like a sphere. 👉 Answer: Sphere Q5. Draw a rectangle and a circle. (एक आयत और एक वृत्त बनाइए।) Solution (English): A rectangle has 4 sides. A circle is round with no corners. 👉 Drawing activity Chapter 2: Fun with Numbers Q6. Write the number name of 345. (345 का संख्या नाम लिखिए।) Solution (English): 345 = T...