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Fungi Science Fair Project

Bread Mold: The Experiment

Bread Mold: The Experiment | Science Fair Projects | STEM Projects
Have you ever wanted to know what happens when you leave a slice of bread out for a few days? In this experiment, you will observe the rate of growth of bread mold in different environments. You will compare the growth of mold in a dark and damp place, in normal room conditions, under the hot sun, in an airtight plastic bag, and in a refrigerator.


The hypothesis is that bread mold will grow more quickly in warm and damp environments.

Method & Materials

You will prepare 5 slices of bread in different environments and observe the rate of growth of bread mold.
You will need 5 slices of bread, some water, an airtight plastic bag, a refrigerator, and a magnifying glass.


The results showed that the bread kept in the dark and damp place was the first to exhibit signs of mold. The bread kept in the refrigerator took the longest for the mold to appear. This proves that bread mold will grow more quickly in warm and damp environments.

Why do this project?

This science project is interesting because it shows how quickly bread mold can grow in different environments.

Also Consider

Experiment variations include baking the bread at high temperatures before starting the experiment, and using different types of food like biscuits or cooked rice.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related video

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