Year 5 rise to the challenge

In class today we made two loaves of bread.  We made them in a breadmaker and followed a recipe.  Both loaves were exactly the same except the second loaf had no yeast.  We have been learning all about yeast and know that yeast feeds on sugar and produces carbon dioxide.  We have done experiments in bottles but wanted to see the effect that yeast has on dough.  These photos show the difference.

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The loaf with yeast rose to about 13cm and it was light and airy and tasted delicious!  The second loaf was heavy, it rose to only 5cm and looked and tasted more like dough.  Even though it didn’t taste much like bread we all gobbled it up anyway!