We have been learning about what Ancient Egyptians ate. We discovered they ate lots of bread that was similar to the bread that we eat with flour, yeast and water!

We used our knowledge of microorganisms to investigate what environment yeast likes. We learned that when the yeast is budding (splitting) they create carbon dioxide bubbles which is what makes bread light and fluffy.

We tested the yeast activity by filling a bottle with water and adding yeast, sugar and putting a balloon on top to see how much carbon dioxide the yeast made. We investigated the yeast with warm water, cold water, more sugar, less sugar and put our bottles outside and on the heater. We noticed the yeast loves warmth and sugar because those balloons blew up much bigger.

The children are making fantastic observations of what they see in our experiments and investigations and have been making conclusions based on the evidence they gather.

Great job P5!