school exhibition

how to make noise(sound) pollution project model for school exhibition or science fair

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noise pollution model

Introduction Noise is measured in Db (decibels) for the normal human ears any sound levels less than 70 Db are less damaging to the living organisms. If any sound goes beyond the 70dB then it needs to treat as noise pollutions due to impacts the living beings as well adverse effect in humans and animals. … Read more

how to make rain water Harvesting working modeL | step by step | science model project

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Introduction In this post, we all talk about how to make the rainwater harvesting working model for your school exhibition or science fair/exhibition very easily at home completely free. First let us understand what is rainwater harvesting, Rainwater harvesting is the process in collecting the rain water mostly in the house/office/any building roof in the … Read more