Wednesday, October 21, 2009

crazy currants by TS


where is the gas formed during the chemical reaction of vinegar and baking soda and how can we see this


The gas is formed as bubbles inside the mixture


baking soda , sultanas, container, vinegar, and measuring spoons


The vinegar is poured into the container.
The baking soda is sprinkled in the container
The sultana are the added.


Bubbles formed when the baking soda and vinegar mixed.
The sultanas traveled to the top of vinegar and then down.This repeated until the bubbles disappeared


The sultanas moved to the top because the bubbles of carbon dioxide formed under the sultanas and pushed them to the top. At the top the bubbles popped and released gas causing the sultanas to fall. This process repeated until there were no more bubbles this proves that gas is formed as bubbles inside the mixture

1 comment:

  1. Sounds like a cool experiment TS! Is your class going to be doing anymore? Would be good to see some photos if you do!