???? ????? ?? ?? ?????? ?? ???? ??? ????? ??? ??? ?? ?? ???? ?? ?????? ?? ???? ???? ??, ?? ??? ?????? ??? ?? ????? ??, ? ???? ???? ??? ?? ?????? ?? ????? ?????? ?? ?????? ???? ??, ?? ??? ????? ?? ??? ??? ???? ??, ?? ??? ??? ?? ??? ????? ??? ????? ?? ?? ???? ?? ?????? ?????? ?? ??? ????? ??, ???? ?? ???? ?? ????? ?? ???? ???????? ?? ?? ???????? ?????? ??, ????? ??????? ?? ????, ???? ??????????? ?? ???? ????????? Apane bachche ko us prithvi ke bare mein janane den jis per vah rahta hai jisamen vah sans leta hai, vah jis prakaash mein vah padhata hai, da bodi usake paas vah parivahan hai jisake dvaara vah yaatra karata hai, vah jis oorja ke saath kaam karta hai, vah jis pashu ke saath mohit hai. paudhon ki vah bhojan aur asankhy kaaranon ke liye jaroorat hai, khanij aur dhaatu ka upayog jo unaki dinacharya ka ek anivaary hissa hai, rasaayan vigyaan ka jaadoo, mahaan vaigyaanikon aur unake aavishkaar. Let your child learn about the Earth he lives on, the air he breathes in, the light he reads in, the body he has, the transport he travels by, the energy he works with, the animals he is fascinated with, the plants that he needs for food and innumerable reasons, the use of mineral and metals which form an essential part of his daily routine, the magic of chemistry, the great scientists and their inventions.