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
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 Rainwater harvesting is a sustainable method of collecting and storing rainwater for future use. With increasing water scarcity, this technique helps conserve water, replenish groundwater, and reduce dependency on municipal water supply. Rainwater can be collected from rooftops, road surfaces, and open areas, and then stored in wells, tanks, or ponds for agriculture, gardening, … 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