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

Air pollution happens when harmful substances like smoke, dust, and gases are released into the air, making it unhealthy for humans, animals, and plants. This working model helps to demonstrate the causes and effects of air pollution and how it can be reduced. Components of the Model How It Works Conclusion This model shows how … Read more

அமில மழை என்பது சல்பர் டை ஆக்சைடு (SO₂) மற்றும் நைட்ரஜன் ஆக்சைடுகள் (NOₓ) போன்ற வாயுக்கள் வளிமண்டலத்தில் வெளியிடுவதால் ஏற்படும் ஒரு தீங்கு விளைவிக்கும் சுற்றுச்சூழல் நிகழ்வு ஆகும். தொழிற்சாலைகள், வாகனங்கள் மற்றும் எரியும் புதைபடிவ எரிபொருள்களால் உற்பத்தி செய்யப்படும் இந்த வாயுக்கள் காற்றில் உள்ள நீராவியுடன் கலந்து அமிலங்களை உருவாக்குகின்றன. மழை பெய்யும்போது, ​​இந்த அமில நீர் தரையில் விழுந்து, தாவரங்கள், மண், கட்டிடங்கள் மற்றும் நீர்நிலைகளை சேதப்படுத்துகிறது. இந்த வேலை மாதிரி தொழிற்சாலை, … Read more

సల్ఫర్ డయాక్సైడ్ (SO₂) మరియు నైట్రోజన్ ఆక్సైడ్లు (NOₓ) వంటి వాయువులు వాతావరణంలోకి విడుదల కావడం వల్ల కలిగే హానికరమైన పర్యావరణ దృగ్విషయం ఆమ్ల వర్షం. కర్మాగారాలు, వాహనాలు మరియు మండుతున్న శిలాజ ఇంధనాల ద్వారా ఉత్పత్తి చేయబడిన ఈ వాయువులు గాలిలోని నీటి ఆవిరితో కలిసి ఆమ్లాలను ఏర్పరుస్తాయి. వర్షం పడినప్పుడు, ఈ ఆమ్ల నీరు నేలపై పడి మొక్కలు, నేల, భవనాలు మరియు నీటి వనరులను దెబ్బతీస్తుంది. ఈ పని నమూనా ఫ్యాక్టరీ, చెట్లు … Read more