Today, to consolidate what we have been learning in Science lessons, we made bread. We used a breadmaker and made 2 loaves of bread. They were identical except that the first loaf contained yeast and the second one did not. We wanted to see, at first hand, the effect that yeast has on bread. We have learned that yeast is a micro-organism that feeds on sugar and there is a chemical reaction that creates a gas called carbon dioxide. The gas is what creates bubbles in the dough and makes the dough rise. Our first loaf was taller, lighter and tastier than the second which was about half the height, quite doughy and chewy. The photos will help you see the difference. Have you ever made bread?