A Moldy Experience!

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Hi, this is Lilly and Claire!

Our class did a mold experiment to practice using the scientific method.  Our teacher said to pair up in groups of three for the project collaboration.  To go with the project, we made a science journal and we’re going to keep track of the results.

Here we are writing about our observations! We collaborated to get the best detail. We made our journals out of small gift bags.


First, we got a piece of bread.  We had to split the bread into three parts.  Then, we rubbed one of the pieces on a desk, one on a shoe, and the last on our tongue.  Each of us had to hypothesize which piece of bread we thought would have the most mold based off information we researched.

The petri dish with the three parts. Reminds me of a fraction!

 

After that, we put it in a petri dish.  The petri dish was split into three equal parts.  It was clear so we could see the mold as it grew.  We had to label it afterward so we knew which bread piece was which.   We put tape on the sides so it would be extra tight.  Once we had mold growing we didn’t want take the chance that it would open!  Yuck!


Look at what is happening to our bread!

Last we put it in a big black container under a desk.  We would check the mold twice a week.  It took a couple of weeks for the mold to become visible.   Once it did we were amazed at the different colors we saw!

Yummmm!

These are most of the colors we saw: yellow, black and blue-green.  We also saw white fluffy looking mold. Some people didn’t have any mold at all…my group!  Bummer!    We must be too clean.

There I am with my moldless bread! I am not looking too happy!

 

Here are some facts about mold…

There are five basic types of mold that grow on bread. The most common mold is penicillium.

Alexander Fleming discovered this mold.

Alexander Fleming

He found that this mold kills germs. He used this to make a medicine called penicillin which saved millions of lives over the last 80 years.
Mold is…
not a plant.
like mushrooms and toadstools. 
one of natures cleaners.
used as flavoring for foods such as blue cheese and soy sauce. 

What do you think would happen to our world if we didn’t have mold?