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Others Like “Yeast Reproduction in Sugar Substitutes”

Science Fair Project Idea
This is a straightforward project on glucose metabolism in yeast. You'll grow yeast under aerobic and anaerobic conditions and measure carbon dioxide output to assess metabolic efficiency. Read more
MicroBio_p009
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Have you ever wondered how antibiotics and other medicines are able to stop dangerous infections? How do such medications kill microorganisms without in general harming the person the microorganisms are infecting? Because many different types of microorganisms can infect us, we have had to develop an amazing number of ways to deal with these harmful microbes. Fungal infections can be particularly dangerous, but we have developed many different antifungal medications that can usually deal with… Read more
BioMed_p012
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Time Required Average (6-10 days)
Prerequisites Basic understanding of what fungus, dilutions, and molecular pathways are.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Wear gloves and have an adult help you when you handle and work with the antifungal medications. Antifungal medications can be damaging to your skin if they are not used properly.
Science Fair Project Idea
thumbnail This is a straightforward, fun project to measure the rate of the chemical reaction that occurs when Alka-Seltzer® tablets are plopped into water. You'll track the volume of carbon dioxide gas produced at regular intervals after the reaction begins. How does changing the temperature of the water affect the production of gas? Read more
Chem_p026
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety Adult supervision needed while using the drill.
Science Fair Project Idea
thumbnail The ingredients in Alka-Seltzer® tablets undergo a chemical reaction that produces carbon dioxide gas as soon as the tablets hit water. Do you think you can cause the tablets to produce gas faster by breaking them into smaller pieces before dropping them in water? Find out for yourself with this project. Read more
Chem_p030
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required for use of power drill (one hole required when building the simple experimental apparatus)
Science Fair Project Idea
thumbnail 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
MicroBio_p011
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail 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. Read more
MicroBio_p008
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Time Required Short (2-5 days)
Prerequisites Good observational skills
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended for handling hot liquids
Science Fair Project Idea
You know there is sugar in non-diet soda, but just how much sugar? Sure, you can look on the ingredients label, but how do food scientists actually measure the amount of sugar in a solution? They use a simple scientific device called a hydrometer. The hydrometer floats in the solution that is being tested, and the higher it floats, the more sugar there is! In this science fair project, you will use a precision hydrometer to measure the amount of sugar in soda. Read more
FoodSci_p056
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Time Required Short (2-5 days)
Prerequisites None
Material Availability A precision hydrometer is required. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Adult supervision is recommended. Use caution, as the hydrometer could break into sharp pieces of glass if dropped.
Science Fair Project Idea
Our metabolism changes as we get older, a sad fact of life that we cannot change. Old age affects our bodies in many ways. Changes in musculature, bone strength, energy, diet and breathing are some of the many ways we change as we age. You might notice that people often get out of breath when they are older and doing a physical activity. Why do some people feel out of breath, while others do not? Does this change correlate with age? Could this reflect a difference in lung capacity between… Read more
HumBio_p003
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Time Required Average (6-10 days)
Material Availability Bromothymol blue is a specialty chemical which can be ordered from an online vendor.
Cost Low ($20 - $50)
Safety Adult supervision is recommended. If using bromothymol blue, be careful not to ingest it. Any volunteer who feels light-headed after exhaling should stop immediately and not repeat the experiment.
Science Fair Project Idea
thumbnail Everybody knows that your body needs oxygen to keep going, and that you breathe out carbon dioxide as waste. What happens when you exercise? You've probably noticed that you breathe faster, and your heart beats faster. What triggers your body to respond in this way? How does it "rev up" to keep your muscles going? Here's a project that gives you a peek into the fascinating science of exercise physiology. Read more
Zoo_p013
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Time Required Average (6-10 days)
Prerequisites Interest in exercise physiology; the deeper your knowledge of acid-base reactions, the further you can take this project
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult assistance recommended for construction and setup of respirometer and data collection
Science Fair Project Idea
The rates of some chemical reactions can actually be increased by adding light. Light sometimes interacts with one or more of the chemicals and provides an "energy boost" that dramatically speeds up a normally slow reaction. In this photochemistry science project, you will experiment with the effect of light on a chemical reaction. The reaction converts iodine, which forms a dark-orange solution, to iodide, which is colorless! Read more
Chem_p095
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Time Required Average (6-10 days)
Prerequisites An introductory chemistry class.
Material Availability You will need basic lab equipment, which can be ordered online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Gloves and safety goggles are required. Oxalic acid is toxic and an irritant. Avoid breathing oxalic acid dust and avoid contact with skin. Ammonia is an irritant. Iodine is also an irritant and stains clothes and skin. Adult supervision is required.
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