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Why does water stay cool in earthen clay pots?
Have you ever had a drink of cool refreshing water from a ‘matka’ or earthen clay pot placed outside? Surprisingly enough, the pots are exposed to blazing sunlight, yet the water within stays so cool. How is that possible? This is because of a physical process known as evaporation. When a liquid changes to a gaseous (or vapour) state without boiling, it is known as evaporation. A matka is made of mud and has many minute pores (extremely small holes)....
We Would All Scream Without Ice Cream
Can you imagine a summer without ice creams? It seems the Chinese, too, couldn’t. For it was they who gave the world its first ice cream. In India, the Mughals are said to have introduced their kind of ice cream — the kulfi. The exact date of origin of the ice cream is not known. Kulfi is a mixture of khoa, pistachio nuts and saffron essence frozen in conical metal containers after sealing it with dough — exactly the same way as it is made today!...
Candle Stand
Candle Stand [Illustrations by Shinod AP] This candle stand is simple and it can be made by children as young as four years. The things you need: A few earthen lamps Glitter Transparent adhesive Step 1: Spread a newspaper sheet and keep the glitter and lamps on it. Step 2: Put some adhesive on the earthen lamp and sprinkle the glitter on it. You can make different patterns and designs using the glitter....
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