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Others Like “Natural Antimicrobial Agents”

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Science Fair Project Idea
Antibiotics work by destabilizing the metabolism or cellular structure of bacteria, preventing growth, and causing bacteria to die. Some strains of bacteria have mutated and found a way to resist the actions of antibiotics. These are called resistant strains because they resist the actions of available antibiotic treatments. There are many different types of antibiotics that are continually being developed to combat new strains of resistant bacteria. Some antibiotics work better on different… Read more
MicroBio_p021
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Time Required Long (2-4 weeks)
Prerequisites This project requires access to bacteria and antibiotics in a laboratory setting. A basic knowledge of how to work with bacteria is needed to complete this science fair project. Consult the [# ProjectGuide Name="Advanced.MicrobiologyTechniquesampTroubleshooting" Value="HtmlAnchor" HtmlText="Microbiology Techniques and Troubleshooting" #] guide for information on how to conduct microbiology experiments.
Material Availability Specialty items, like bacteria and the media to grow them on, can be ordered from such as .
Cost High ($100 - $150)
Safety Requires adult supervision in a laboratory setting. Use sterile technique. Read the before starting any experiments. may be necessary.
Science Fair Project Idea
There are many types of construction materials used for wood-frame houses. Compare the different uses for and strengths of different building materials, e.g.: particle board, plywood, pine, oriented strand board (OSB), and drywall (gypsum board, SheetRock). The Science Buddies Materials Science Resource will be helpful for learning about different ways to measure material strength. You should be sure to use the same cross-sectional area of each material in order to make fair comparisons.… Read more
CE_p020
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Time Required Average (6-10 days)
Science Fair Project Idea
Did you know that a scientific study has shown that chewing Big Red Gum reduces mouth microbes? (ScienceDaily contributors, 2004) The cinnamon oil in the gum is a natural defense against mouth bacteria that cause tooth decay and bad breath. Conduct an experiment to compare products with cinnamon essence in gum, candy, toothpaste, and mouthwash to see if they can decrease mouth germs. Do a before and after swab of the mouth with a Q-tip. Which treatments work the best? Can you find another… Read more
MicroBio_p023
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Time Required Long (2-4 weeks)
Prerequisites A basic knowledge of how to work with bacteria is needed to complete this science fair project. Consult the [# ProjectGuide Name="Advanced.MicrobiologyTechniquesampTroubleshooting" Value="HtmlAnchor" HtmlText="Microbiology Techniques and Troubleshooting" #] guide for information on how to conduct microbiology experiments.
Material Availability Specialty items, like the media to grow bacteria on, can be ordered from such as .
Cost Average ($50 - $100)
Safety Use sterile technique. Read the before starting any experiments. may be necessary. Adult supervision is recommended.
Science Fair Project Idea
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
MicroBio_p014
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Time Required Average (6-10 days)
Prerequisites To do this project, you will need access to a laboratory with facilities for culturing bacteria. You should be familiar with sterile technique and proper handling of bacterial cultures.
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Standard precautions for handling bacterial cultures and bleach.
Science Fair Project Idea
Is soil structure an important factor in earthquake dynamics? Investigate soil liquefaction and how different soil types respond to earthquake movements. Are movements more dramatic in sandy/loamy or clay type soils? Which soil structures are most stable? Which are the most volatile? (MCEER, 2005) Read more
Geo_p037
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Time Required Average (6-10 days)
Science Fair Project Idea
What is cloning and how is it used in the biotechnology industry? How are plasmids constructed for use in a bacterial expression system? You can investigate bacterial expression with the from the Bio-Rad Biotechnology Explorer Program to make bacteria express green fluorescent protein (GFP), as shown in Figure 1, below (see the Science Buddies project, ). With variations to this kit you can test the conditions for pGLO expression under different conditions. You can also combine with… Read more
BioChem_p024
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Time Required Average (6-10 days)
Prerequisites Some laboratory experience is required: knowledge of sterile technique, working with bacterial cultures, and using automatic pipettes are all helpful.
Material Availability This science project requires the purchase of Bio-Rad's . Details about how to order products from Bio-Rad can be found .
Cost Very High (over $150)
Safety Adult supervision is required in the laboratory facility. Use sterile technique. Read the before starting any experiments. may be necessary.
Science Fair Project Idea
If you live in a humid environment, then you know that summer is not only hot, it is downright muggy. You can test the effect of humidity on temperature by measuring the temperature and humidity in your bathroom while running the shower. You can also use historical weather data to compare average seasonal temperatures in humid (e.g., Florida) and dry (e.g., Arizona) regions. How does humidity relate to temperature? Pressure? Why do humid environments tend to be coastal or tropical? How does… Read more
Weather_p017
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Time Required Average (6-10 days)
Science Fair Project Idea
Temperature also changes with latitude. As you move away from the equator, the temperature tends to decrease. Test this by comparing weather data from weather stations at different latitudes. (FI, 2006; GLOBE, 2006; NCAR, 2006; NOAA, 2006; Unisys, 2006; Weather Underground, 2006; WMO, 2006) Read more
Weather_p021
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Time Required Short (2-5 days)
Science Fair Project Idea
Wind can make a cold day colder, or a hot day more pleasant. Use weather data to test the effect of wind on the temperature. How much of a change on the perceived temperature can the wind make? How is wind shear calculated? How can a wind barrier, like a wind breaker, keep you warm even if there is no insulating material? Build an instrument to measure wind speed or direction. (FI, 2006; GLOBE, 2006; NCAR, 2006; NOAA, 2006; Unisys, 2006; Weather Underground, 2006; WMO, 2006) Read more
Weather_p019
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Time Required Average (6-10 days)
Science Fair Project Idea
If you browse through a candy cookbook, you might notice that many of the recipes call for corn syrup in addition to sugar. Both sugar and corn syrup are sweet, so why do you need corn syrup if you already have sugar? In candy making, corn syrup is known as an interfering agent. But what does this mean and how does it work? You can find out for yourself by making two batches of rock candy, one with corn syrup and one without. For example, you could alter the science project by replacing 1… Read more
FoodSci_p017
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety This science fair project requires adult help. The boiling sugar solution is extremely hot.
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