In this category, we add all the DIY school project models for pre-college students (Class 11 / Grade11 )/ (Class 12 / Grade12 ).
where students can do themselves step by step for their school exhibition or fair
Introduction An electric bell is a common device used in schools, offices, and homes to produce a sound signal when activated. It works on the principle of electromagnetism, where electric current creates a magnetic field that attracts a metallic hammer to strike a bell or steel plate. The electric bell is an important example of … Read more
Introduction Brakes are one of the most important safety systems in vehicles. Among different types of braking systems, hydraulic brakes are widely used in cars, bikes, and heavy vehicles because they provide strong and smooth braking. Hydraulic brakes work on the principle of fluid pressure transmission, where force applied at one point is transmitted equally … Read more
Introduction Hydroelectricity is one of the most important and widely used renewable sources of energy. It is produced by converting the energy of flowing or falling water into electrical energy. Hydroelectric power plants generate electricity without producing pollution, making them eco-friendly and sustainable. This Hydroelectricity Working Model is a DIY science exhibition project made using … Read more
Introduction The human heart is a vital organ of the circulatory system. It works continuously like a pump to circulate blood throughout the body. The heart supplies oxygen-rich blood to all organs and removes carbon dioxide and waste products. Understanding the working of the heart is very important in biology. This Human Heart Working Model … Read more
Introduction Street lights play an important role in ensuring safety and visibility on roads during the night. In many places, street lights are switched ON and OFF manually, which leads to electricity wastage if they remain ON during daytime. To overcome this problem, automatic street light systems are used. These systems automatically turn ON the … 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 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 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
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
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: Conservation of Energy Energy is the ability to do work or cause change. It exists in many forms such as mechanical energy, heat energy, light energy, electrical energy, and chemical energy. In our daily life, we constantly observe energy changing from one form to another. The Law of Conservation of Energy states that energy … Read more
Here are 25 Water Management Working Model Ideas — creative, practical, and perfect for school exhibitions , science fairs, and YouTube videos. 1. Rainwater Harvesting Model Shows rooftop collection → pipe → filter → storage tank. 2. Drip Irrigation System Conserves water using controlled slow release. Use IV tubes or straws. 3. Sprinkler Irrigation Model … Read more