science project models
This is a gravity-based water dispenser. When the water bottle is placed upside down, gravity pushes water toward the straw pipe. Opening the cap slightly allows air to enter, and water flows out through the straw into the glass. This demonstrates how gravity and air pressure can be used to dispense water without electricity or … Read more
This model shows how a water level indicator works. When the water reaches the level of the two safety pins, it completes the electric circuit, turning on the red LED light and the buzzer. This indicates that the tank is full and water should be stopped. It helps in preventing water overflow and wastage, and … Read more
This is an automatic street light working model without sensors. When a vehicle passes over a hump, it presses the push button below, turning on the LED street light. Once the vehicle leaves the hump, the button is released and the light turns off. This shows how street lights can work automatically using simple pressure … Read more
Project Theme: Simulate how a blood pressure monitor (sphygmomanometer) works using hydraulics and pressure concepts with syringes and a cardboard dial to show BP levels. Step-by-Step Video Instructions: 1. Make the Arm Cuff Simulator 2. Hydraulic Pressure Mechanism 3. Create the BP Dial 4. Pressure-to-Pointer Movement How It Works: https://howtofunda.com
In this DIY project, you’ll learn how to build a Streetlight Working Model using cardboard, LED lights, and a 9V battery. Step-by-Step Video Instructions: Manual Version (Switch-controlled): https://howtofunda.com
In this DIY video, learn how to make a Balanced Diet Wheel Working Model using cardboard, color paper, and a rotating pointer. This simple yet educational project helps students understand the different food groups and the importance of a balanced diet in an engaging way. Turn the arrow to any food group and explain the … Read more
In this video, you’ll learn how to make a Mini Air Cooler (AC) using cardboard, a DC motor, and simple tools. This project is perfect for school science fairs, teaching the concept of evaporative cooling and basic electrical motor use. Step-by-Step Video Instructions: 1. Build the Frame: 2. Add the Fan: 3. Make Cooling Pad … Read more
In this video, learn how to make a Hydraulic Powered Robotic Arm Working Model at home using syringes, cardboard, and pipes. This model demonstrates how hydraulics can be used to control the motion of robotic arms, just like those used in manufacturing industries and construction! Step-by-Step Video Instructions: 1. Base Construction: 2. Build the Arm … Read more
A hydroelectricity generator converts water flow energy into electrical energy using a turbine and generator. This method is commonly used in hydropower plants to produce renewable electricity. Hydroelectricity Generator Working Model Making This DIY working model will demonstrate how flowing water can generate electricity using a rotating turbine made of bottle caps, a DC generator, … Read more
Rainwater harvesting is the process of collecting, storing, and using rainwater for agricultural purposes. It helps in water conservation, groundwater recharge, and irrigation during dry seasons. This DIY working model will demonstrate how rainwater is collected, stored, and reused for irrigation using a DC water pump and a 9V battery. Materials Required: Steps to Make … Read more
A computer flowchart is a diagrammatic representation of a process or algorithm using symbols and arrows to show the flow of control. It is used in programming and system design to visually map out logical steps in solving a problem. This working model will visually represent a computer flowchart with LED lights and switches, allowing … Read more
Introduction This working model demonstrates how solar and wind energy can be used to power a house, a street light, and a windmill, promoting the use of renewable energy for a sustainable future. It highlights the practical applications of solar panels and wind turbines in daily life. Materials Required Model Setup Key Learning Points: https://www.youtube.com/@howtofunda
Introduction This working model demonstrates how solar and wind energy can power two houses, showcasing the importance of renewable energy sources in reducing dependence on fossil fuels. It highlights the practical use of solar panels and wind turbines to generate electricity. Materials Required Model Setup Key Learning Points: https://www.youtube.com/@howtofunda
Concept This working model demonstrates how solar and lunar eclipses occur using a circular base, with Earth on top, the Moon moving around it, and the Sun positioned next to the base. It helps visualize how the alignment of the Sun, Earth, and Moon creates eclipses. Materials Required Model Setup Key Learning Points: https://www.youtube.com/@howtofunda
Introduction A hydraulic lift is a simple yet powerful machine that uses the principles of Pascal’s Law to lift heavy objects using fluid pressure. This working model demonstrates how hydraulic systems are used in real-world applications such as elevators, car lifts, construction equipment, and industrial machinery. Materials Required How It Works Applications of Hydraulic Lifts: … Read more