The mustard seeds do not move in a straight line. They spread out in various directions depending on the shape and slope of the paper, just like rivers split or change course in nature. Class 5 NCERT EVS Our Wondrous World ...
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When ice melts, it changes from solid to liquid. When water boils, it becomes vapour. These activities show how water changes its form due to heat—called melting and evaporation. Class 5 Our Wondrous World – The World Around Us – Chapter ...