Class 12 / Grade12

A heart working model using syringes demonstrates how the heart pumps blood through the circulatory system. The model mimics the contraction and relaxation of the heart chambers, showing the process of blood flow, similar to how the human heart works in pumping oxygenated and deoxygenated blood. Key Components of the Model: How It Works(heart working … Read more

A greenhouse working model demonstrates how a controlled environment can optimize plant growth by regulating temperature, humidity, and light. This model replicates the basic functioning of a greenhouse, a structure that harnesses solar energy to create ideal conditions for plants, allowing them to grow year-round. Key Components of the Model: How It Works(Greenhouse working model): … Read more

A water filter working model demonstrates the process of purifying water by removing impurities and contaminants, making it safe for drinking. The model showcases a simple filtration system using various natural materials to simulate a water purification process. Key Components of the Model: How It Works(Water filter working model): Applications and Learning: This hands-on model … Read more

A hydroponic farming working model demonstrates an innovative method of growing plants without soil. Instead of using traditional soil, plants are grown in nutrient-rich water, which provides all the necessary nutrients directly to the plant roots. This model highlights the benefits of soil-free farming, such as water conservation, faster growth, and space efficiency. Key Components … Read more

An escalator working model demonstrates the mechanism of a moving staircase that transports people between floors. This miniature model showcases the basic principles of motion, mechanics, and power transmission used in real-life escalators. Key Components of the Model: How It Works (Escalator working model): Applications and Learning: This interactive and functional model is a great … Read more

An electric circuit working model demonstrates how electricity flows through connected components and explains the difference between series and parallel circuits. It provides a clear understanding of basic electrical concepts and how circuits function in everyday devices. Key Components of the Model: How It Works(electric circuit ): Series Circuit: Parallel Circuit: Applications and Learning: This … Read more

An electricity generator working model demonstrates how mechanical energy can be converted into electrical energy using electromagnetic induction. This principle is the foundation of power generation in real-world power plants. Key Components of the Model: How It Works(electricity generator): Applications and Learning: This hands-on model is an engaging way to explain how mechanical energy is … Read more

A distillation of water working model demonstrates how impure water can be purified by using heat to separate water from contaminants like salt, dirt, or other impurities. This process is based on the principle of evaporation and condensation. Key Components of the Model: How It Works (Distillation of water working model): Real-Life Applications: This model … Read more

A satellite communication working model demonstrates how signals are transmitted between Earth and satellites orbiting in space to enable communication over long distances, such as for television broadcasts, internet services, and GPS navigation. In this model, the key components include: This model effectively demonstrates how satellite communication works, using the principles of signal transmission, reflection, … Read more

सल्फर डायऑक्साइड (SO₂) आणि नायट्रोजन ऑक्साईड (NOₓ) सारखे हानिकारक वायू वातावरणात सोडले जातात तेव्हा आम्ल पाऊस पडतो. कारखाने, वाहने आणि जीवाश्म इंधन जाळण्याद्वारे उत्सर्जित होणारे हे वायू पाण्याच्या वाफेत मिसळून आम्ल तयार करतात. पाऊस पडतो तेव्हा हे आम्लयुक्त पाणी वनस्पती, माती, इमारती आणि जलसाठ्यांचे नुकसान करते. हे कार्यरत मॉडेल कारखाना, झाडे आणि पाण्याच्या पंपाचा वापर … Read more

ಆಮ್ಲ ಮಳೆಯು ಗಾಳಿಯಲ್ಲಿ ಸಲ್ಫರ್ ಡೈಆಕ್ಸೈಡ್ (SO₂) ಮತ್ತು ನೈಟ್ರೋಜನ್ ಆಕ್ಸೈಡ್‌ಗಳು (NOₓ) ನಂತಹ ಹಾನಿಕಾರಕ ಅನಿಲಗಳ ಉಪಸ್ಥಿತಿಯಿಂದಾಗಿ ಸಾಮಾನ್ಯಕ್ಕಿಂತ ಹೆಚ್ಚು ಆಮ್ಲೀಯವಾಗಿರುವ ಮಳೆಯಾಗಿದೆ. ಈ ಅನಿಲಗಳು ಕಾರ್ಖಾನೆಗಳು, ವಾಹನಗಳು ಮತ್ತು ಸುಡುವ ಪಳೆಯುಳಿಕೆ ಇಂಧನಗಳಿಂದ ಬಿಡುಗಡೆಯಾಗುತ್ತವೆ. ಅವು ವಾತಾವರಣದಲ್ಲಿ ನೀರಿನ ಆವಿಯೊಂದಿಗೆ ಬೆರೆತಾಗ, ಅವು ಆಮ್ಲ ಮಳೆಯಾಗಿ ನೆಲಕ್ಕೆ ಬೀಳುವ ಆಮ್ಲಗಳನ್ನು ರೂಪಿಸುತ್ತವೆ. ಈ ಕಾರ್ಯ ಮಾದರಿಯು ಆಮ್ಲ ಮಳೆ ಹೇಗೆ ರೂಪುಗೊಳ್ಳುತ್ತದೆ ಮತ್ತು ಪರಿಸರದ ಮೇಲೆ ಅದರ ಪರಿಣಾಮಗಳನ್ನು ವಿವರಿಸುತ್ತದೆ. ಮಾದರಿಯ ಘಟಕಗಳು ಕಾರ್ಖಾನೆ … Read more

Disaster management is the process of planning, preparing, responding to, and recovering from natural or man-made disasters to minimize their impact on human lives, property, and the environment. This working model demonstrates how disaster management systems function for various types of disasters, including tsunamis, hurricanes, earthquakes, tornadoes, wildfires, volcanic eruptions, blizzards, hailstorms, mudslides, and floods. … Read more

జలవిద్యుత్ అనేది ప్రవహించే నీటి శక్తిని ఉపయోగించి విద్యుత్తును ఉత్పత్తి చేసే ప్రక్రియ. నీటి వనరు, టర్బైన్ మరియు జనరేటర్ వంటి ప్రాథమిక భాగాలను ఉపయోగించి నీటి శక్తిని విద్యుత్ శక్తిగా ఎలా మారుస్తారో ఈ నమూనా ప్రదర్శిస్తుంది. ఇది ఎలా పనిచేస్తుంది: నీటి ప్రవాహం: ఈ ప్రక్రియ ప్రవహించే నీటితో ప్రారంభమవుతుంది, ఇది నదులు లేదా ఆనకట్ట నుండి విడుదలయ్యే నీటిని సూచిస్తుంది. ఈ నీటికి గతి శక్తి (చలన శక్తి) ఉంటుంది. నమూనాలో, ఒక … Read more

நீர்மின்சாரம் என்பது பாயும் அல்லது விழும் நீரின் சக்தியைப் பயன்படுத்தி மின்சாரம் உற்பத்தி செய்யும் ஒரு வழியாகும். இந்த சுத்தமான மற்றும் புதுப்பிக்கத்தக்க ஆற்றல் மூலமானது உலகளவில் பொதுவாகப் பயன்படுத்தப்படுகிறது. நீர் ஆதாரம், விசையாழி மற்றும் ஜெனரேட்டர் போன்ற எளிய பொருட்களைப் பயன்படுத்தி நீரிலிருந்து வரும் ஆற்றலை எவ்வாறு மின் ஆற்றலாக மாற்ற முடியும் என்பதை இந்த வேலை செய்யும் மாதிரி நிரூபிக்கிறது. இது எவ்வாறு செயல்படுகிறது: நீர் ஓட்டம் (இயக்க ஆற்றல்): இந்த செயல்முறை நீர் … Read more