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Fungi Science Fair Project

Mold Colonies in a Moist Chamber

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Mold Colonies in a Moist Chamber | Science Fair Projects | STEM Projects
What happens when you seal a piece of bread inside a damp plastic bag for five days? The warm moisture creates a perfect home for fungi. Fuzzy colonies start to appear in as little as three days. You place bread or another food item on a damp paper towel inside a sealed sandwich bag. The bag stays in a warm spot out of direct sunlight. Each day you check for new colonies and record their color and size. Some fungi grow fast. One common mold called Rhizopus can cover the entire slice in just two days. You can also compare different substrates like bread versus carrots.

Hypothesis

The hypothesis is that molds and bacteria will grow in a moist chamber.

Method & Materials

You will make a moist chamber by placing a damp towel in a plastic bag, adding a slice of bread or other substrate, and sealing the bag.
You will need bread, sandwich bags with a tie, fold top or "zip lock", a marker to label the bags, and damp, not wet, paper towels.

Results

After a few days, you will be able to observe the growth of molds and bacteria in your own moist chamber. You may even find a fast-growing fungus called the Galloping Grey Ghost (Rhizopus stolonifer)!

Why do this project?

This science project is unique because it allows you to explore the world of fungi in a simple and fun way.

Also Consider

Experiment variations to consider include trying different kinds of bread or other substrates, or comparing the growth of molds and bacteria on bread versus carrots.

Full project details

Additional information and source material for this project are available below.
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