science working model
Introduction Water is one of the most precious natural resources, especially in agriculture. Traditional irrigation methods like flood irrigation lead to a huge loss of water due to evaporation, runoff, and seepage. To solve this problem, modern agriculture uses drip irrigation, a highly efficient water-saving technique. Drip irrigation delivers water directly to the root zone … Read more
Introduction The human kidney is one of the most important organs of the body. Kidneys play a vital role in maintaining internal balance by filtering blood, removing waste products, regulating water level, and maintaining proper concentration of salts and minerals. Every day, kidneys filter nearly 180 liters of blood to remove toxins and excess substances, … Read more
Introduction Energy is an essential requirement for the development of any country. With increasing population and industrial growth, the demand for electricity is rising rapidly. Most of the electricity today is produced using fossil fuels such as coal, oil, and natural gas. These sources are non-renewable and cause serious environmental problems like air pollution, global … Read more
Introduction The human respiratory system is one of the most vital systems of the body. It is responsible for breathing and supplying oxygen to all body cells while removing carbon dioxide, which is a waste gas. Without oxygen, human life cannot survive even for a few minutes. Understanding how the respiratory system works is very … Read more
Introduction In the modern digital world, computer networks play a very important role in communication, data sharing, and information transfer. From schools and offices to banks, hospitals, and the internet, computer networks connect devices and people across the globe. To understand how computers are connected in a network, it is essential to learn about network … Read more
Introduction Waste management is one of the most serious challenges faced by modern society. With increasing population, urbanization, and consumption, the amount of waste generated every day is rising rapidly. Improper disposal of waste leads to environmental pollution, health hazards, blockage of drainage systems, and spread of diseases. Therefore, effective waste management is essential to … Read more
Introduction Energy is the backbone of modern life. From lighting homes and running industries to powering schools, hospitals, and transportation, energy is required everywhere. Most of the energy used today comes from non-renewable sources such as coal, petroleum, and natural gas. These sources are limited in quantity and cause serious environmental problems like air pollution, … Read more
Introduction Water is one of the most precious natural resources on Earth, yet it is being rapidly depleted due to population growth, urbanization, climate change, and inefficient water management. Many cities today face severe water scarcity during summer and flooding during monsoon, highlighting poor planning and wastage of rainwater. Rainwater harvesting is a simple, cost-effective, … Read more
Introduction The kidneys are vital organs of the human body that help in filtering waste products, excess salts, and extra water from the blood. They maintain the balance of electrolytes and help regulate blood pressure. However, when the kidneys fail due to diseases such as diabetes, high blood pressure, infection, or injury, harmful waste starts … Read more
Introduction Water is one of the most essential natural resources for life on Earth. However, rapid urbanization, population growth, climate change, and over-extraction of groundwater have led to serious water shortages in many cities. At the same time, a large amount of rainwater gets wasted every year by flowing into drains and rivers. Rainwater harvesting … Read more
Aim of the Project To demonstrate the solar eclipse phenomenon using a rotating Earth and Moon model, showing how the Moon comes between the Sun and Earth, blocking sunlight. Scientific Principle A solar eclipse occurs when: Types of solar eclipse: Materials Required Model Setup (Structure) Step-by-Step Construction (DIY) Step 1: Prepare the Base Step 2: … Read more
Introduction Waste management is one of the biggest challenges faced by modern cities. With increasing population, urbanization, and consumption, the amount of waste generated every day is rising rapidly. Improper disposal of waste leads to environmental pollution, health problems, spreading of diseases, and climate change. To solve this issue, a scientific and systematic waste management … Read more
संकल्पनात्मक प्रस्तावना आपल्या आजूबाजूला घडणाऱ्या प्रत्येक कृतीमागे ऊर्जा असते. एखादी वस्तू खाली पडणे, चाक फिरणे किंवा एखादे यंत्र चालणे – हे सर्व ऊर्जा रूपांतरणाचेच परिणाम आहेत. ऊर्जा दिसत नसली तरी तिचा परिणाम स्पष्टपणे दिसून येतो. ऊर्जेच्या संरक्षणाचा नियम सांगतो: ऊर्जा निर्माण करता येत नाही आणि नष्टही करता येत नाही; ती फक्त एका रूपातून दुसऱ्या रूपात … Read more
ভাবনাভিত্তিক ভূমিকা আমাদের চারপাশে যা কিছু কাজ করে, তার পেছনে রয়েছে শক্তি। কোনো বস্তু পড়ে যাওয়া, চাকা ঘোরা বা যন্ত্র চালানো—সবকিছুই শক্তির বিভিন্ন রূপের ফল। শক্তি চোখে দেখা যায় না, কিন্তু তার প্রভাব স্পষ্টভাবে অনুভব করা যায়। শক্তির সংরক্ষণ নীতি অনুযায়ী— শক্তি সৃষ্টি করা যায় না, ধ্বংসও করা যায় না; কেবল এক রূপ থেকে অন্য … Read more
భావనాత్మక పరిచయం మన చుట్టూ జరిగే ప్రతి పని శక్తి వల్లే జరుగుతుంది. మనం నడిచినా, ఒక వస్తువు పడినా, యంత్రం పనిచేసినా – అన్నీ శక్తి మార్పులే. శక్తి ఎప్పటికీ కనబడదు కానీ దాని ప్రభావం మాత్రం స్పష్టంగా కనిపిస్తుంది. శక్తి సంరక్షణ సూత్రం ప్రకారం: శక్తిని సృష్టించలేం, నాశనం చేయలేం; అది కేవలం ఒక రూపం నుంచి మరో రూపానికి మారుతుంది. ఈ నమూనా ఆ మాట నిజమని, ఒక సాధారణ యాంత్రిక వ్యవస్థ … Read more