Assemble and Demonstrate of Solar Panel to Operate a small fan (Grade VIII, State Standard)
Overview: The World has great shortage of energy. The main sources of producing energy are oil, gas, coal etc. However, these sources are too much expensive and needs great efforts, resources to be utilized for industrial as well as domestic purposes. Sun is the main source of energy. it releases energy at a mass-The rate of conversion of energy is 4.26 million metric tons per second, which produce 3.846x10 26 W. In Pakistan shortage of energy is the main problem. Industries and household requirements are several times greater than energy production by Hydroelectric mechanism. Pakistan is seeking alternatives for production of energy. Solar Panels are one of the cheap sources of production of energy. Solar Photovaltaic was discovered back in 1839 by French scientist Edmond Becquerel. Over the course of the next 100 years, many discoveries and inventions were made and by 1954, Daryle Chapin, Gerald Pearson and Calvin Fuller were the first to design the first silicon photovoltaic cell which was the precursor of all silicon cells today. Over the next few decades, solar power technology continued to develop. Photovoltaic research and development discovered new material, cell designs and novel approaches to solar material and product development. Now a days, solar panels are available all over world for converting solar energy to electricity. In Pakistan, they are widely used in areas Where the hydroelectric power has not reached, or to cope with the effects of load shedding in urban areas. Today we are going to design assemble and demonstrate a model of a fan run by a solar panel. Objectives of the lesson: To Develop curiosity in students about Scientific approach. To shift the students from rote memorization towards inquiry-based learning. To enable them to create ideas, think critically and logically and solve problems themselves. To develop and inculcate the zeal of Science, Technology, Engineering and Mathematics.