science working model
The Automatic Water Dispenser Without Using Arduino is a simple, useful, and low-cost science exhibition project. It automatically detects a person’s hand and dispenses water without requiring the user to touch a switch, tap, or button. The model shown uses an IR sensor, relay module, DC water pump, battery, water container, and transparent pipe. This … Read more
The Renewable Energy Working Model shown in the image is an attractive and educational science exhibition project that demonstrates how solar energy and wind energy can be used to generate electricity. The model represents a small sustainable community containing a solar-powered house, solar panels, a wind turbine, gardens, pathways, and solar-powered street lights. The main … Read more
This River Flood Working Model is a simple and attractive science exhibition project that demonstrates how heavy rainfall in mountainous areas can increase the flow of water in rivers and cause flooding in nearby villages, roads, and low-lying areas. The model is especially suitable for explaining the flood situation in Nepal, where mountainous terrain, heavy … Read more
A breadboard is one of the most useful tools for learning electronics and building simple circuits. It allows us to connect electronic components such as LEDs, resistors, sensors, switches, buzzers, and jumper wires without soldering. Because components can be inserted and removed easily, a breadboard is especially useful for students, beginners, and science-project models. A … Read more
Here is a large collection of 110 sensor project ideas, especially suitable for school science exhibitions, Inspire Awards, STEM fairs, DIY YouTube projects, and low-cost working models. I have focused on projects that can be made with commonly available sensors such as IR, PIR, ultrasonic, LDR, soil-moisture, water-level, temperature, gas, rain, flame, sound, vibration, magnetic, … Read more