Cael Makes Baking Soda Colours

Today I made baking soda art with baking soda, food colouring and vinegar. Mum set up some trays for me with baking soda sprinkled on it and mixed vinegar and food colouring to make it fizz. I had a lot of fun mixing the colours with an eye dropper. 

Baking soda and vinegar fizz when they are mixed because baking soda is a base and vinegar is an acid.

http://www.newton.dep.anl.gov/askasci/chem99/chem99116.htm
http://www.knowswhy.com/why-do-vinegar-and-baking-soda-react/
http://www.exploratorium.edu/science_explorer/bubblebomb.html

Mum says to pretend the kitchen is clean. Mum pretends a lot.