Apologia Biology Module 4 – Mold and uh Mold oh yeah and more mold.
The assignment for the class was to grow mold and boy did they grow some mold! It was wonderful.
I really didn’t think more than one student would have mold, so I grew some extra for the class. This is what I ended up with. Lots of luscious mold! Yummy!! I now can say I have a green moldy thumb.
I tried to get a great shot of this under the camera microscope. I didn’t get exactly what I wanted, but it isn’t too bad. Yes, this is what grows on old food.
Out of the six students three could not grow any mold, one grew mold on bread, and one forgot. Let’s see that leaves one student left. This student cracked me up. He had his bag closed and waited for everyone else to show their handy work. It was finally his turn and he said, “I read the experiment wrong. I thought it said we could use fruit.” I promptly told him he read it right and I was so glad he tried the fruit. He got a big grin and this is what he showed the class.
Can you guess what it is? It use to be organic figs. I was so excited, I think I yelped! I kept saying, “Isn’t it pretty!”. The kids just looked at me funny, but I am used to that now.
So, the kids observed with their eyes. This young man had to put his t-shirt over his mouth. I don’t blame him. I didn’t think of getting masks. If you do this project, it would be very wise of you to get masks.
The young lady in the middle is highly allergic to mold and her mom was able to provide two masks.
After observing with the eyes, we then took small amounts and looked at them under the microscope.
Now you are probably wondering why the three students were not able to grow mold on their slices of bread. The answer is simple, they used store bought bread. It is full of preservatives. After searching around the web, I found that it takes well over a month for breads with preservatives to grow mold. Makes you wonder, doesn’t it?
Growing mold experiment was done on the same day as the mushrooms. We had plenty of time to do both.
See the round mushroom at the lower left of the tray? That is a puff-ball mushroom. When it was cut open, the spores on the inside came out like black smoke. I was able to get a picture of it on the microscope.
Below is a mushroom gill. We are not sure if we actually found any spores.
I really had fun with this experiment.