Knowledge: Some new things I have learned just from end of November until now. For yeast the form is that yeast are tiny little blobs together. Also, there can be good mould and bad moulds. Moulds can kill other moulds and their are many mould names. Black mould can cause lung disease, and the colours can be named. Like green is for penicillium. I also, know have a better understanding of adding, subtracting, multiplying, and dividing fractions.