How to Make Renewable Energy Working Model (Hydroelectricity – Wind Energy – Solar Energy)

renewable energy working model (hydroelectricity - wind - solar energy) - sustainable agriculture for science exhibition - diy - howtofunda

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

how to make Computer Model Making Using Cardboard and Color Paper (Monitor, CPU, Keyboard, Mouse, Sound System)

computer model making using cardboard and color paper for science project exhibition - diy - howtofunda - computer project

Introduction In today’s digital age, computers have become an essential part of our everyday life. They are used in schools, offices, hospitals, banks, industries, and homes. Understanding the basic parts of a computer system is very important for students. A computer works on the simple principle of Input – Process – Output. This project is … Read more

How to make Computer Input and Output Devices Working Model with LED Quiz System

computer input and output devices working model for exhibition - with led lights - award winning - creative and innovative project - diy - howtofunda

Introduction Computers play an important role in our daily life, from education and communication to business and entertainment. Every computer system works on the basic principle of Input – Process – Output (IPO). Input devices are used to give data and instructions to the computer, while output devices are used to display or produce the … Read more

Rainwater Harvesting Working Model for a Sustainable Smart City

rainwater harvesting working model - sustainable smart city - save water - save environment - diy - howtofunda

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

How to make hemodialysis Working Model (3D) Using Syringes – Artificial Kidney Machine

hemodialysis working model using syringes for science project exhibition - diy- craftpiller - artificial kidney machine

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

how to make rainwater harvesting working model – sustainable smart city – save water environment

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

how to make the solar eclipses working model for science exhibition

solar eclipse working model for science exhibition - earth and moon rotation - diy - howtofunda - t1

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

how to make waste management working model for science project exhibition

waste management working model for science project exhibition - diy - waste pickup - waste segregation - recycling - landfill - composting - howtofunda

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

ऊर्जेचे संरक्षण – कार्यरत मॉडेल

conservation of energy

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

শক্তির সংরক্ষণ – কার্যকরী মডেল

conservation of energy

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

శక్తి సంరక్షణ – పనిచేసే నమూనా

conservation of energy

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

ಶಕ್ತಿಯ ಸಂರಕ್ಷಣೆ – ಕಾರ್ಯನಿರ್ವಹಿಸುವ ಮಾದರಿ (ಪುಲಿ ಮತ್ತು ಸುತ್ತುವ ಚಕ್ರ)

conservation of energy

ಪರಿಚಯ ಶಕ್ತಿ ಎಂದರೆ ಕೆಲಸ ಮಾಡುವ ಸಾಮರ್ಥ್ಯ. ಇದು ಸ್ಥಿತಿಜ ಶಕ್ತಿ, ಚಲನ ಶಕ್ತಿ, ಯಾಂತ್ರಿಕ ಶಕ್ತಿ, ಉಷ್ಣ ಶಕ್ತಿ ಮತ್ತು ವಿದ್ಯುತ್ ಶಕ್ತಿ ಮುಂತಾದ ಹಲವು ರೂಪಗಳಲ್ಲಿ ಕಾಣಿಸುತ್ತದೆ. ಪ್ರಕೃತಿಯಲ್ಲೂ ಮತ್ತು ಯಂತ್ರಗಳಲ್ಲಿ ಕೂಡ ಶಕ್ತಿ ನಿರಂತರವಾಗಿ ಒಂದು ರೂಪದಿಂದ ಮತ್ತೊಂದು ರೂಪಕ್ಕೆ ಪರಿವರ್ತನೆಯಾಗುತ್ತದೆ. ಶಕ್ತಿಯ ಸಂರಕ್ಷಣಾ ನಿಯಮ ಹೀಗೆ ಹೇಳುತ್ತದೆ: ಶಕ್ತಿಯನ್ನು ಸೃಷ್ಟಿಸಲು ಸಾಧ್ಯವಿಲ್ಲ ಮತ್ತು ನಾಶಪಡಿಸಲು ಸಾಧ್ಯವಿಲ್ಲ; ಅದನ್ನು ಕೇವಲ ಒಂದು ರೂಪದಿಂದ ಮತ್ತೊಂದು ರೂಪಕ್ಕೆ ಮಾತ್ರ ಪರಿವರ್ತಿಸಬಹುದು. ಈ ಕಾರ್ಯನಿರ್ವಹಿಸುವ ಮಾದರಿ … Read more

ஆற்றல் பாதுகாப்பு – செயல் மாதிரி

conservation of energy

அறிமுகம் ஆற்றல் என்பது ஒரு வேலை செய்யும் திறன் ஆகும். இது நிலை ஆற்றல், இயக்க ஆற்றல், இயந்திர ஆற்றல், வெப்ப ஆற்றல் மற்றும் மின்சார ஆற்றல் போன்ற பல வடிவங்களில் காணப்படுகிறது. இயற்கையிலும் மனிதனால் உருவாக்கப்பட்ட கருவிகளிலும், ஆற்றல் தொடர்ந்து ஒரு வடிவிலிருந்து மற்றொரு வடிவுக்கு மாற்றப்படுகிறது. ஆற்றல் பாதுகாப்பு விதி கூறுவது: ஆற்றலை உருவாக்கவும் முடியாது, அழிக்கவும் முடியாது; அதை ஒரு வடிவிலிருந்து மற்றொரு வடிவுக்கு மட்டுமே மாற்ற முடியும். இந்த செயல் மாதிரி, … Read more

ऊर्जा संरक्षण – कार्यशील मॉडल

conservation of energy

परिचय ऊर्जा किसी कार्य को करने की क्षमता होती है। ऊर्जा विभिन्न रूपों में पाई जाती है जैसे स्थितिज ऊर्जा, गतिज ऊर्जा, यांत्रिक ऊर्जा, ऊष्मा ऊर्जा और विद्युत ऊर्जा। हमारे दैनिक जीवन में ऊर्जा निरंतर एक रूप से दूसरे रूप में परिवर्तित होती रहती है। ऊर्जा संरक्षण का नियम कहता है कि ऊर्जा न तो … Read more

Conservation of Energy – Working Model (Pulley and Rotating Wheel)

conservation of energy

Introduction Energy is the capacity to do work. It exists in various forms such as potential energy, kinetic energy, mechanical energy, heat energy, and electrical energy. In nature and in machines, energy continuously changes from one form to another. The Law of Conservation of Energy states that energy can neither be created nor destroyed; it … Read more