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
This is a working model of a solar-powered house. It shows how solar energy can be harnessed from the Sun using a solar panel installed on the roof. The panel converts sunlight into electricity, which lights up the house.This model promotes renewable energy, helps reduce electricity bills, and is environmentally friendly.The surrounding green garden adds … Read more
This model shows the contrast between afforestation and deforestation.On this side, afforestation is shown where more trees are planted. It supports biodiversity, maintains the water cycle, reduces pollution, and keeps the Earth cool. On the other side, deforestation is shown. Trees are cut down for construction, farming, or industries, which causes loss of wildlife, air … Read more
This working model shows the effect of global warming and how greenhouse gases like carbon dioxide trap heat in Earth’s atmosphere. When sunlight enters, some of it reflects back, but greenhouse gases trap most of the heat, raising the Earth’s temperature.In this box, you can see how the trapped heat makes the area warmer, simulating … Read more
This is a working model of a volcano, which demonstrates how magma inside the Earth rises and erupts as lava. Inside the volcano, we have a red LED light that simulates the glow of hot lava inside.When the switch is turned on, the LED glows, showing the intense heat and molten rock inside a volcano.Optionally, … Read more
This is a working model showing Air, Water, and Land Pollution. On the left, we see factories and vehicles releasing smoke, causing air pollution.In the middle, the plastic tray represents a lake, which is getting polluted by factory waste using this syringe mechanism. You can also see a truck dumping garbage into the river. This … Read more
“This is a Hydraulic Gate Working Model made using syringes and cardboard.It demonstrates Pascal’s Law – the principle behind hydraulic systems. When I push the first syringe, water pressure moves the second syringe’s plunger, lifting the gate.Such hydraulic gates are used in dams, canals, and flood control systems. Materials Required: Video Steps to Make the … Read more
This is a hydraulic lift working model in a scissor shape, made using syringes and ice cream sticks/cardboard. It demonstrates Pascal’s Law, where pressure applied on a fluid in a closed container is transmitted equally.When we press one syringe, the water moves into the other, pushing it out and lifting the scissor mechanism. This model … Read more
This is a working model of the human respiratory system.The plastic bottle represents the chest cavity.The two balloons inside are our lungs, and the straws act as the trachea and bronchi.The balloon at the bottom represents the diaphragm, which plays a key role in breathing. When we pull the bottom balloon (diaphragm) downward using the … Read more
Here’s a step-by-step guide on how to connect 3 LEDs in series with a 9V battery, switch, and resistor. Materials Required: Why Connect LEDs in Series? Video Step-by-Step Instructions: 1. Connect the Switch: 2. Series Connection of LEDs: 3. Add the Resistor: https://www.youtube.com/@howtofunda
LEDs (Light Emitting Diodes) are small electronic components that glow when electric current passes through them. To connect three LEDs in parallel using a 9V battery, switch, and resistors, we follow a simple circuit design. Here’s a simple step-by-step guide to connect 3 LEDs in parallel with a 9V battery, switch, and resistors You Will … Read more
Energy is the ability to do work, and it exists in many forms. Light, wind, and sound energy are three common types we use in daily life. Light energy comes from sources like the Sun, bulbs, and lamps. It helps us see, grow plants (through photosynthesis), and even generate electricity using solar panels. Wind energy … Read more
This model demonstrates how wind energy can be converted into electrical energy using a wind turbine connected to a DC motor, which powers an LED bulb to light up a cardboard house. This model shows how wind energy is converted into electrical energy using a wind turbine connected to a DC motor. The electricity powers … Read more
An automatic barrier gate operates using a DC motor and a rotating arm, controlled manually or with sensors. It’s used to restrict or allow vehicle access in areas like parking zones or railway crossings. This model shows how an automatic barrier gate works using a DC motor to control the movement of the gate arm. … Read more
This model demonstrates how hydraulic pressure can lift heavy objects using syringes filled with water—mimicking how real cranes operate in construction and industries. This hydraulic crane works on Pascal’s Law, which states that pressure applied to a fluid is transmitted equally in all directions. The syringes use water to transfer pressure, which moves the crane’s … Read more
This working model is a Water Fountain, demonstrating how a closed water system uses a pump to circulate water. It also helps explain concepts of pressure, water recycling, and motor-powered flow systems. Such mechanisms are used in gardens, buildings, and artificial water features. This model demonstrates a recycling water fountain using a DC water pump … Read more