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Name: Amanda
Status: Student
Grade:  9-12
Location: MA
Country: United States
Date: September 2005

I have done a mold experiment, and I find that there are greenish-yellow, black, and white colors on the wheat breads. I have 4 pieces of bread, and each was provided with different amount of water. Why there are different colours appearing on the same kind of bread? and what causes this?

The different color molds are caused by different species of mold growing on the bread. Keep in mind that there are probably several hundred different species of mold.

Ron Baker, Ph.D.

There are different species of molds that grow on bread, you may have more than one growing on the same piece. This site may be helpful:

J. Elliott

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