social science working models for science exhibitions
Introduction Rainwater harvesting is the process of collecting and storing rainwater for future use. It is an important method of water conservation, especially in areas where water is limited or rainfall is seasonal. Instead of allowing rainwater to flow away from rooftops and roads, it can be collected, filtered, stored, and reused for gardening, cleaning, … Read more
Introduction An earthquake is the sudden shaking of the Earth’s surface caused mainly by the movement of tectonic plates along faults. Earthquakes can damage buildings, roads, bridges, and other structures. An early warning or detection system can provide an alert when strong vibrations are detected. This project demonstrates a simple Earthquake Alarm Working Model using … Read more
Introduction A First Aid Box is a collection of basic medical supplies used to provide immediate care when someone gets a minor injury or suddenly becomes unwell. It is useful at home, schools, workplaces, vehicles, and public places. First aid does not replace professional medical treatment, but it can help control bleeding, protect wounds, reduce … Read more
Introduction Natural farming is an eco-friendly method of agriculture that works with nature instead of depending heavily on chemical fertilizers and pesticides. It focuses on maintaining healthy soil, conserving water, using natural inputs, protecting biodiversity, and producing nutritious crops. This working model demonstrates several important practices of natural farming, including cow-based farming, Jeevamrut, vermicompost, water … Read more
Introduction The ozone layer is a protective layer of gas present in the Earth’s stratosphere. It absorbs most of the Sun’s harmful ultraviolet (UV) radiation and protects living organisms from problems such as skin damage, eye diseases, and harm to plants and animals. This working model explains how ozone depletion happens, what causes it, and … Read more