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
Science projects can help students understand how technology solves real-world problems. The following 20 working model ideas are inspired by projects commonly demonstrated on the YouTube channel HowToFunda. Each project shows how science can improve daily life and benefit society. 1. Rainwater Harvesting System This model demonstrates how rainwater from rooftops can be collected and … Read more
Here are 20 unique science working model ideas inspired by projects 1. Renewable Energy Power Plant Model (Solar + Wind + Hydro) This working model demonstrates how different renewable energy sources can generate electricity. The model combines a small solar panel, a windmill turbine, and a hydroelectric turbine powered by flowing water. Each system produces … Read more
This science project demonstrates an Automatic Fire Extinguisher System without Arduino using a tubelight starter as a switch to activate a water pump. When heat or flame is detected, the starter works like an automatic trigger and the pump sprays water to control the fire. This model is simple, low-cost, and perfect for school science … Read more
A Water Level Indicator with Alarm is an electronic system designed to detect and display the level of water in a container or tank. It helps prevent water overflow and ensures efficient water usage. This project is commonly used in homes, industries, and water storage systems to monitor water levels automatically. The model shown in … Read more
This 3D Human Respiratory System Working Model created for a science project exhibition. The model clearly demonstrates how the human lungs function during breathing. It is designed using simple craft materials like cardboard, colored paper, tubes, and labels, but it effectively explains a very important biological process — respiration. Let us understand the structure and … Read more
This 3D Nuclear Power Plant Working Model designed for a science project exhibition. The model clearly demonstrates how electricity is generated in a nuclear power plant using nuclear energy, steam, turbines, and generators. Even though it is made using simple materials like cardboard, thermocol, colors, and small electric components, it represents the real working principle … Read more
Urban flooding is one of the biggest environmental challenges faced by modern cities. Rapid urbanization, concrete roads, poor drainage systems, and climate change have increased the risk of floods in urban areas. To understand and demonstrate flood management techniques, an Urban Flood Control Working Model is an excellent science exhibition project. This award-winning DIY project … Read more
In this video, we show you how to build an amazing Chandrayaan-3 working model for your science project exhibition! This DIY model helps explain India’s historic lunar mission by the Indian Space Research Organisation (ISRO) and demonstrates key scientific concepts using simple materials. It’s perfect for school science fairs, classroom presentations, and anyone interested in … Read more
In this video, we show you how to build an exciting Carnival Ride working model (Merry-Go-Round) using simple materials and a DC motor. This interactive project is perfect for school science exhibitions, science fairs, classroom demonstrations, and DIY engineering displays. It demonstrates basic principles of rotational motion, mechanical engineering, and electrical circuits in a fun … Read more
In this video, we show you how to build a renewable energy working model that combines solar power and wind energy to demonstrate how clean, sustainable energy can be generated and used to power small devices like LED lights or model houses. This working model is ideal for school science exhibitions, science fairs, classroom demonstrations, … Read more
In this video, we show you how to create an amazing Day and Night working model that clearly explains how the rotation of Earth causes day and night. This project uses a rotating Earth model with LED lights to represent sunlight and darkness, making it perfect for school science exhibitions, science fairs, and classroom demonstrations. … Read more
In this video, we present a carbon purification working model that demonstrates how industrial air pollution — especially smoke with carbon and harmful particles — can be filtered and cleaned before being released into the environment. This hands-on project is perfect for school or college science exhibitions, science fairs, and classroom demonstrations. Air pollution from … Read more
Introduction The human digestive system is one of the most important systems of the body. It helps in breaking down the food we eat into simpler substances so that our body can absorb nutrients and use them for energy, growth, and repair. Without digestion, our body would not be able to get the required nutrients … Read more
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