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Experiment in Microbiology Science Projects (32 results)

By studying tiny microorganisms, learn how biological processes work at the cellular level. Experiment with testing disinfectants, growing microorganisms on agar plates, or creating products that beneficial microbes help make.

Yeasty Beasties
Science Fair Project Idea
Scientific Method
While looking at a package of dry yeast it is hard to believe that the package has organisms in it that are alive. But add the right ingredients and presto, the mixture becomes a bubbly, oozing, mess of life! What are the right ingredients? What does that yeast need to become active? Do this science project and figure it out for yourself! Read more
Ocean Bioluminescence: Investigate When and How Dinoflagellates Glow
Science Fair Project Idea
Scientific Method
Imagine the ocean water turning bright red or seeing ocean waves glowing a beautiful blue color. Sounds impossible—but it is not! Red tides and glowing waves are caused by microscopic organisms living in the ocean called dinoflagellates. Some dinoflagellates have the ability to produce light through a process called bioluminescence. When and how do these organisms glow? In this science project, you will investigate how changing the dinoflagellate's exposure to light and dark affects its… Read more
How Well Do Disinfectants Work?
Science Fair Project Idea
Scientific Method
Germs are everywhere! We try and clean our home with disinfectants, but do we really get rid of all the germs? Find out with this "hands-on" experiment. Read more
Can Aloe Juice Save Your Berries from Mold?
Science Fair Project Idea
Scientific Method
Fuzzy things are often cute, but not when that fuzziness is mold on your strawberry—yuck! Companies look for natural, plant-based ways to protect the berries from mold when they are in the store, waiting for you to purchase them. Would washing them in aloe vera juice protect strawberries from mold? Do this project and find out! Read more
Exploring DNA Damage: What Effect Do Ultraviolet Rays Have on Yeast Colony Growth?
Science Fair Project Idea
Scientific Method
Though the Sun provides heat and light, which are essential for life on Earth, ultraviolet (UV) rays in sunlight can cause damage to DNA. In this science fair project, you will experiment with a strain of yeast that is super-sensitive to UV light. This project will demonstrate the lethal effects of UV light when DNA damage is not repaired. Read more
Measuring Antimicrobial Effectiveness with Zones of Inhibition
Science Fair Project Idea
Scientific Method
Have you heard that garlic powder is supposed to inhibit the growth of bacteria? Which do you think would make a better disinfectant: a solution of garlic powder or a solution of bleach? This project shows you a straightforward way to compare the effectiveness of different disinfectants (or other antimicrobial agents), by measuring zones of inhibition on a culture plate. Read more
Spread the Soap, Not the Germs
Science Fair Project Idea
Scientific Method
Do you wash your hands? You should— it's the best way to prevent the spread of germs. But germs can be tricky; they find nooks and crannies to hide in, so it takes good hand-washing technique to get rid of them. In this science project, you'll investigate which parts of the hand are the most difficult to wash germs off of. Read more
Yogurt Cultures
Science Fair Project Idea
Scientific Method
Have you ever wondered how yogurt is made and what makes some yogurts different from other yogurts? You may have noticed that most yogurt containers advertise that the yogurt contains "live cultures." This means that there are living bacteria in the yogurt! These amazing bacteria can turn plain old milk into a yummy yogurt treat. In this science project, you will investigate whether the bacteria affect what the yogurt feels, tastes, and smells like by making your own yogurt at home! Read more
Yeast Reproduction in Sugar Substitutes
Science Fair Project Idea
Scientific Method
There is nothing quite like the smell of fresh-baked bread to make your mouth water! As any baker can tell you, you cannot bake bread without yeast. Yeast actually eat sugar so that they can reproduce and make more yeast, and make bread dough rise. But can they use sugar substitutes to do this? In this science project you will get to investigate how well yeast grow with sugar substitutes as a food source. Pass the butter, please! Read more
Do Different Dilutions of Disinfectants Affect the Development of Bacterial Resistance?
Science Fair Project Idea
Scientific Method
This is a project that illustrates the process of natural selection in action. You'll need access to a laboratory for working with the bacterial cultures used in this project. Read more
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