Fun with Candle  | Bengali
Channel: Arvind Gupta
Date: 21/05/2016

This is a simple experiment very easy to do. You just need a plastic bottle, candle and a matchbox. Heat the base of the candle to melt it and then fix it in the bottle lid. Then light the candle. Finally invert the empty bottle and screw its mouth on its lid. Wait for a while. First the candle will burn brightly but slowly the flame will become feeble and extinguish. Why? Well a candle needs oxygen to burn. Maybe, the burning candle consumed all the oxygen and then shrunk in size. On opening the lid the bottle becomes its original size. Repeat the same experiment with a big and a medium size bottle. We observe that the medium size bottle contracts much more than the big bottle. Why? What happens to the Carbon dioxide produced by the burning candle?

This work is supported by IUCAA (www.iucaa.in) and TATA Trust (www.tata.com/aboutus/sub_index/Tata-trusts)

Credits:,Ashok Rupner, Manish Jain, Pradnya Pujari, Shivaji Mane, Jyoti Hiremath, Arvind Gupta, Vidula Mhaiskar

Dubbed in Bengali by Krishnanjan Mondal from Pratham's Science Learning Program TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality education to the underprivileged population in India. To facilitate quality in teaching and learning of Science education through workshops, capacity building and resource creation, Tata Trusts have been supporting Muktangan Vigyan Shodhika (MVS), IUCAA's Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org