Class 9 / Grade 9

A water purification working model demonstrates how filtration removes impurities from water, making it clean and safe for use. This model uses simple materials like big gravel, small gravel, soil, tissue paper, and paper cups to explain a basic filtration process. Components of the Model How It Works Conclusion This working model effectively demonstrates how … Read more

A windmill working model demonstrates how wind energy can be converted into mechanical or electrical energy. It is an excellent project for a science exhibition, showcasing renewable energy and sustainable development. Components of the Model How It Works Conclusion This windmill model demonstrates the principles of harnessing wind energy, an eco-friendly and renewable resource. It … Read more

A wind vane is a device used to show the direction of the wind. It is commonly seen in weather stations and is an essential tool for meteorologists. A working model of a wind vane is a simple and effective way to demonstrate how this device functions in a science exhibition. Components of the Model … Read more

A hydraulic crane working model demonstrates the principle of hydraulics, which uses fluid pressure to lift and move heavy objects. This simple model, made using cardboard, wheels, a nail, copper wire, and a 9V battery, is perfect for a science exhibition. Components of the Model Working Principle Conclusion This working model effectively shows how hydraulic … Read more

A working model on transport and communication shows how people, goods, and information move from one place to another. It highlights the importance of these systems in connecting the world and making our lives easier. Components of the Model How It Works Conclusion This working model demonstrates how transport and communication are the backbone of … Read more

A climate change working model for a science exhibition helps explain the causes, effects, and solutions for climate change. It visually demonstrates how human activities and natural processes contribute to global warming and its impact on the environment. Components of the Model Working and Explanation The model starts by showing the causes of climate change, … Read more

ಚಂದ್ರಯಾನ-3 ಭಾರತದ ಮೂರನೇ ಚಂದ್ರಯಾನ ಮಿಷನ್ ಆಗಿದ್ದು, ಇದನ್ನು ಇಸ್ರೋ (ಭಾರತೀಯ ಬಾಹ್ಯಾಕಾಶ ಸಂಶೋಧನಾ ಸಂಸ್ಥೆ) ಚಂದ್ರನ ಮೇಲ್ಮೈಯನ್ನು ಅನ್ವೇಷಿಸಲು ಉಡಾಯಿಸಿದೆ. ಶಾಲಾ ವಿಜ್ಞಾನ ಪ್ರದರ್ಶನಕ್ಕಾಗಿ ಚಂದ್ರಯಾನ-3 ರ ಕಾರ್ಯ ಮಾದರಿಯು ಮಿಷನ್ ಹೇಗೆ ಕಾರ್ಯನಿರ್ವಹಿಸುತ್ತದೆ ಎಂಬುದನ್ನು ಸರಳ ಪದಗಳಲ್ಲಿ ವಿವರಿಸಲು ಸಹಾಯ ಮಾಡುತ್ತದೆ. ಘಟಕಗಳು: ಲ್ಯಾಂಡರ್ (ವಿಕ್ರಮ್): ಲ್ಯಾಂಡರ್ ರೋವರ್ ಅನ್ನು ಚಂದ್ರನ ಮೇಲ್ಮೈಗೆ ಸಾಗಿಸುವ ಬಾಹ್ಯಾಕಾಶ ನೌಕೆಯಂತಿದೆ. ಇದರ ಮುಖ್ಯ ಕೆಲಸವೆಂದರೆ ಚಂದ್ರನ ಮೇಲೆ ಅಪ್ಪಳಿಸದೆ ಮೃದುವಾಗಿ ಇಳಿಯುವುದು. ರೋವರ್ (ಪ್ರಜ್ಞಾನ್): ರೋವರ್ ಒಂದು … Read more

Chandrayaan-3 is India’s third lunar mission, launched by the Indian Space Research Organisation (ISRO) with the goal of achieving a soft landing on the Moon and exploring its surface. A working model of Chandrayaan-3 for a science exhibition would demonstrate the key components and working principles of this mission. Components: Lander (Vikram): The lander carries … Read more

An electric bell working model for a science exhibition can be an interesting project to demonstrate the working of an electric circuit, electromagnetism, and mechanical motion. This model typically involves a simple setup with a steel glass, DC motor, 9V battery, nut, and a few additional components. Here’s how the model works: Components: Working Principle: … Read more

An earthquake alarm is a device that detects ground vibrations and alerts people to take safety precautions. This working model uses simple components like sample houses, a DC motor, a 9V battery, and a nut to simulate and detect earthquakes effectively. It is an engaging way to demonstrate disaster management in a science exhibition. Components … Read more

A river flooding alarm is a device that alerts people when water levels rise dangerously high, indicating the risk of flooding. This working model uses simple components like nuts, bolts, a 9V battery, and a buzzer to demonstrate an early warning system. It is set up with a plastic tray to simulate a river and … Read more

A rain alarm is a device that alerts people when it starts raining. This working model demonstrates how a rain alarm works using simple components like metal blades and a 9V battery. It is a practical and educational tool for understanding basic electronics and the concept of conductivity. Components of the Model How It Works … Read more

A fire alarm system is essential for detecting fires and ensuring safety. This working model demonstrates a fire alarm using a tubelight starter and a 9V battery, showcasing a simple yet effective fire detection mechanism for science exhibitions. Components of the Model How It Works Benefits This fire alarm working model is an excellent tool … Read more

An air cooler is a simple and efficient way to cool the air using water or ice. This working model demonstrates how it works, using materials like a cardboard box, a 9V battery, a DC motor, and ice to show the cooling process. Air coolers are eco-friendly and consume less energy compared to air conditioners. … Read more