Rise to the Occasion: Investigating Requirements for Yeast Fermentation
Did you ever wonder how yeast makes bread dough rise? This project will show you what yeast does to make this happen. You'll also investigate the conditions yeast needs to grow.
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How Do Food Preservatives Affect the Growth of Microorganisms?
This project uses liquid cultures and agar plates to investigate the effects of different concentrations of a food preservative on microbial growth.
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Can Garlic Prevent Crown Gall?
Crown gall is a plant disease caused by the soil bacterium
Agrobacterium tumefaciens. This project uses tomato plants to investigate whether garlic extract can prevent crown gall infection.
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The End Zone: Measuring Antimicrobial Effectiveness with Zones of Inhibition
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.
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Germ Invasion
Microbes are everywhere in our environment, but for the most part they escape our notice. This project shows you how to safely culture and study common bacteria from your everyday surroundings.
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Yeast Reproduction in Sugar Substitutes
There's nothing quite like the smell of fresh-baked bread to make your mouth water! As any baker can tell you, you can't bake bread without yeast. This project makes clever use of bread dough to measure yeast reproduction three different ways, and investigates how well yeast grow with sugar substitutes as a food source. Pass the butter, please!
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Which Acne Medication Can Really Zap That Zit?
Have you ever wondered where acne comes from and how you can treat it? One major cause of acne is the colonization and infection of clogged pores with the bacteria
P. acnes. In this science project, you'll test different acne medications and treatments to determine their effectiveness at killing
P. acnes.
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Disinfectants
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Disinfectants are products that kill harmful bacteria that inhabit surfaces. Disinfectants can be in household and personal cleaning products. Which products work best? Compare different household...
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Death Rays: What Duration of Ultraviolet Exposure Kills Bacteria?
Ultraviolet light can damage DNA molecules. If a cell's DNA repair mechanisms can't keep up with the damage, mutations are the result. As harmful mutations accumulate, the cell eventually dies. How much ultraviolet light is too much for a bacterial cell?
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Index of Microbiology Project Ideas |
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