Tuesday, May 27, 2014

Foaming yeast

Today we learnt that yeast is a rising agent. We put hydrogen peroxide and detergent into a coke zero bottle and added some food colouring. Then we added yeast and felt the bottle get warmer. The yeast started to bubble up. When we shock the bottle it foamed up quickly. We decided to add extra hydrogen peroxide to see what would happen. It made the green colour turn white.

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