Tuesday, March 21, 2017

volcano experiment

On Tuesday Room 6 went back to the STEM room to watch and wonder at another experiment. 
We experimented with baking soda, food colour, washing up liquid and vinegar and created an erupting volcano! 

Waiting for the explosion

It bubbled up and flowed down the side of the volcano.



Starting to bubble

More vinegar makes it explode even more


We  discussed what caused the volcano to explode.
Claire thought that "the acid in the vinegar caused it to react with the other ingredients."
Later we used a clear cup to see what happened inside the volcano.
Baking soda, dish washing liquid and food colour

Adding vinegar


Bubbling up!

Fizzing and bubbling

We wondered what would happen if we had put in warm water?

No comments: