In this category, we add all the diy school project models for secondary school students,(Class 9 / Grade 9).
Where students can do themselves step by step for their school exhibition or fair
Introduction A water dam is a large wall or barrier built across a river to stop and store water. The water collected behind the dam forms a big lake called a reservoir. This stored water is very useful for people, farms, and industries. Dams provide water for drinking, farming (irrigation), and factories. They also help … Read more
An escalator is a moving staircase that carries people up and down between different floors of a building. It is powered by an electric motor and works with a chain of steps that keep moving in a continuous loop. Escalators are very useful in places where many people need to move quickly, such as shopping … Read more
Introduction A water overflow alarm is an electronic device designed to prevent the wastage of water. It alerts people when a water tank becomes full, usually by producing a loud sound or turning on a light. This simple system helps in saving water, electricity, and avoids unnecessary mess caused by overflow. The device works using … Read more
Introduction Water is one of the most important resources for life, but fresh water is limited and many areas face shortages. To solve this problem, two important methods are used: rainwater harvesting and water purification. Rainwater harvesting means collecting rainwater and storing it for future use. The water is usually collected from rooftops or open … Read more
This 3D model demonstrates both Solar and Lunar Eclipses.The Sun, Earth, and Moon are represented by these three colored balls.In a Solar Eclipse, the Moon blocks the Sun’s light and casts a shadow on Earth.In a Lunar Eclipse, the Earth comes between the Sun and Moon, casting a shadow on the Moon.This model helps us … Read more