Empty Bottle Siphon | English
Channel: Arvind Gupta
Date: 2016-11-26

With the help of two bottles we can make a simple siphon. For this you will need two bottles – one big, one small, a stiff straw, scissors and glue. Cut the big bottle about 1/3rd from the base. We will discard the base part.  Make a small hole in the bottle lid. Press a stiff straw tightly in the lid hole. Seal the joint with rubber glue. Take the small bottle and cut two notches on its mouth as shown.  Invert the big bottle and keep it vertically. Fill it with colored water. When the water crosses the level of the yellow straw then it will start draining out from the straw.  The water will stop draining when it reaches the straw level. Now we wish to drain the remaining water using a Siphon. For this dunk the small bottle with its mouth down into the big bottle. This will raise the level of the water a little and water will start draining again. Because of siphon the water from the big bottle will be filled in the small bottle. The big bottle will be emptied and slowly the small bottle will also get drained because of the siphon action.

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

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

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