using balloons in this cool science experiment! Watch how it pumps, just like the real thing, and learn how blood flows in and out of your heart!



Watch 'iBilib' Sundays at 9:35 AM on GMA Network, hosted by Chris Tiu and Shaira Diaz.



For more iBilib Highlights, click the link below:

https://www.youtube.com/playlist?list=PLLYaldfT7P2Teh_NQfZBAjzvRkaF0KZuw