Bread Mold Experiment Mold is something that we often take for granted‚ as something that makes us have to throw the bread away or the cheese smell bad. Mold is‚ in fact‚ a fascinating organism which has had many different uses over the years and our lives would not be the same without it. Most of us know that food seems to become moldy more quickly in the summer than in the winter when it is colder. Food in refrigerators seems to keep longer than food left out in the sun. Is this true? Does temperature
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The main focus of this experiment was to find the relationship between temperature and the enzyme activity of amylase. This was achieved by attaining amylase enzyme‚ starch solution and potassium iodide (determines if enzymes hydrolyses the starch solution)‚ water bath and a hot plate. The temperatures used for this experiment were room temperature‚ 37oC‚ 60oC‚ 80oC‚ and 90oC. The hypothesis developed was that as the temperature increased‚ so will enzyme activity. Therefore‚ the ability of the
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is still open to controversy. Does a dose of caffeine heighten one ’s mental performance‚ or does it achieve the opposite? Many experiments have already taken place in order to discover how caffeine effects a person ’s mental performance. In the Radiological Society of America ’s annual conference in December of 2005‚ Florian Koppelstatter reported an experiment in which he used functional magnetic resonance imaging(fMRI) to determine how coffee effects brain activity. Subjects were then given
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The Afterlife Investigations: The Scole Experiment “Best evidence of life after death ever.” This is what this documentary film is pointing out. Is there really a life after death? Well this film makes me believe more that there is indeed a life after death. However‚ how can scientific evidence explain life after death? Now this film showed me how. The ninety-minute documentary film is about the Scole Experiment‚ which is a five-year investigation into life after death. It is conducted by
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Abstract An experiment is conducted to prepare soap and thus‚ to compare the properties of the prepared soap and synthetic detergents which are precipitation‚ emulsification and cleaning abilities. It can be concluded that soap has the properties if emulsifying oil whereas detergent has not. The abilities of forming precipitates can be seen clearly in soap solution whereas detergent forms no precipitates at all. The experiment is completed and successfully conducted. Introduction
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bubbles. So that’s why we call it a lava lamp inside of bottle. The conclusion is that you can make lava lamp household items if you use Alka-Seltzer‚ water‚ food coloring‚ and vegetable oil. So if you want to try just do what we did. That is our experiment. Why this happened because the Alka-seltzer had a chemical reaction beacuse of some powder on the outside of the alka-seltzer so the bubbles carried the food coloring up to the top of the bottle
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The objective of the experiments is to see if mold will grow on bread if it has water. Molds are found everywhere. They are a type of microscopic fungi that lives on organic matter. They can be found both indoors and outdoors. No one knows how many species of fungi exist but estimates at least three hundred thousand or more. they have been on this earth for millions of years and believe to grow where there is moisture. According to the U.S.D.A eating bread with mold can cause allergic reaction and
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The Tuskegee Experiment In 1932‚ in the area surrounding Tuskegee‚ Macon County‚ Alabama‚ the United States Public Health Service (PHS) and the Rosenwald Foundation began a survey and small treatment program for African-Americans with syphilis. Within a few months‚ the deepening depression‚ the lack of funds from the foundation‚ and the large number of untreated cases provied the government’s reseachers with what seemed to be an unprecedented opportunity to study a seemingly almost
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Salinity Experiment Aim To determine a method of measuring a soil sample’s salinity level in order to measure 3 samples’ salinity level. Hypothesis I think that by running a current through a salt solution and measuring the resultant amperage‚ a pattern in the recordings will help find a soil sample’s salinity level. Variables Controlled Amount of solution (100 mL)‚ supplied voltage (4V)‚ amount of soil (50 gm) & water (150 mL) in soil sample’s solution. Independent Amps recorded
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photosynthesis. Problem What is the relationship between light intensity and the rate of photosynthesis? Pre-Lab Discussion Read the entire investigation. Then‚ work with a partner to answer the following questions. 1. What are the variables in this experiment? Identify the manipulated and responding variables and two controlled variables. The manipulated variable is light intensity. The responding variable is pH. Controlled variables include the initial pH‚ the size of the plant sprigs‚ and time
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