Friday, 9 March 2012

Eruptions with bi-carbonate of soda and vinegar!

We had a bit of a 'science experiment' today!
I managed to find a massive tub of bi-carbonate of soda in the local cash-and-carry so I thought I'd put it to some use.

I sprinkled some in the bottom of a sandwich box then dotted food colouring on top. 

The boys then filled up medicine syringes with vinegar and dropped the vinegar into the sandwich box. 

The coloured fizzing 'volcanos' looked great and I loved watching the boys' reactions!

They then had a play with the syringes and a good stir up of the mixture - it soon became a black grainy slush which Eden loved putting his hands in! 

Good fun was had by all!