This week, Year 4 learnt about a micro-organism called yeast that likes to eat sugary foods. When it does this, it makes a gas called carbon dioxide. This is what causes bread to have holes it in. We investigated which types of sugary foods yeast likes to eat. We found out that it produces a lot of carbon dioxide from white sugar, golden sugar and golden syrup. It didn’t produce as much gas in the time given from flour or sweetner – but it did make some. Write ups and further analysis to follow!