On Wednesday 27th April Class 1 tried the yeast experiment which involves:
1. Filling three bottles equally with sugar and yeast.
2. Then filling one of the bottles with boiling hot water, one with cold and one with warm water but measure the water equally!
3.stretch a balloon over the top.
4. wait for the carbon dioxide to fill the balloon.
Then which ever one has more gas and froth is the environment in which yeast likes.
The bottle with the red balloon, that has warm water in it, works best!