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Comprehensive essay on food preservation
Heat transfer essay
Heat transfer essay
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Question- What will evaporate quicker water, soda, or juice Hypothesis- Water will evaporate the quickest because there isn't heavy sugars in the drinks slowingdown the evaporation process.
-Research
Which one of the items listed above will outlast the other, before we answer this we have to look at what's inside. For soda we are going to use Coca-Cola, "high fructose corn syrup, carbonated water, caramel color, and phosphoric acid" are the ingredients. Next we have juice, we will be using Tropicana pulp free orange juice. Ingredients are "100% Pure pasteurized orange juice, calcium hydroxide, malic acid, and citric acid." Finally water, which depending on the pH levels in your tap could evaporate differently. For the sake of the experiment,
Anne Zhang 3/6/14 BSGE 7-1 Lab Report Problem Paragraph 1 Question: What is the effect of temperature on the dissolving time of an Alka-Seltzer? Alka-Seltzer is made up of baking soda, aspirin, and citric acid which gives the tablet the fizz when dropped in any temperature water. “Alka-Seltzer is a medication that works as a pain reliever and an antacid.
Shirreffs SM, Aragon-Vargas LF, Keil M, Love TD, Phillips S. Rehydration after exercise in the heat: a comparison of 4 commonly used drinks. International Journal of Sport Nutrition and Exercise Metabolism 17:244-258, 2007.
Hypothesis: The Alka Seltzer will dissolve fastest in hot water and slowest in cold water.
Alka Seltzer Dissolving at Different Temperatures. The variable that I will change will be the temperature of the water. that the Alka Seltzer is put in. For my results I will measure the time taken for the Alka seltzer.
An Investigation Into How the Thickness of Insulation Affects the Time a Drink Takes to Cool Down
(Why Does Alka-Seltzer Fizz in Water?) The fizzing that occurs is basically the same as baking powder and vinegar. (Why Does Alka-Seltzer Dissolve in Water?) The chemical reaction happens when molecules collide into sufficient energy to break old bonds and form new ones. (Walker and Wood)Some of these may take a while and others may take almost no time at all. (Walker and Wood) Alka-Seltzer contains citric acid and sodium bicarbonate which is basically baking powder. (Walker and Wood) I believe that the tablets will dissolve faster in warmer water, because increasing temperature also increases kinetic energy of the reactant molecules. When the rate of the reactant molecules increases the tablets will dissolve quicker. (Walker and Wood) When Alka-Seltzer dissolves it is caused by acid coming in contact with baking soda. (Why does Alka-Seltzer
For my 6th grade science fair project I chose to find out which drink is better for you and which drink improves performance more, Gatorade or Powerade. I chose this topic because I am an athlete, and it would be nice to know which drink is healthier, along with which drink replenishes better. My group members and myself formed hypotheses to answer these questions. I hypothesized Powerade would be healthier because it has vitamins B-3, B-6, and B-12, while I thought Gatorade would improve performance more because it has more electrolytes, sodium, and potassium. We tested our hypotheses by doing research online and performing experiments.
Coke continuously out-stands Pepsi, even though they share a very similar taste and colour, however Coke should not be the drink that receives all the love and attention for what it offers. Despite their similar soda colour, the drinks actually contain some different ingredients, which produce a different taste, and affect the body differently. Furthermore, the way the companies markets their drinks makes a huge contribution to how successful their products will become. The major element for success however stems from their impact on society and how the companies utilize their social power to evolve. The two major soda companies are constantly head to head with one another, yet it is what they do that sets them apart.
The soft drink industry in the United States is a highly profitably, but competitive market. In 2000 alone, consumers on average drank 53 gallons of soft drinks per person a year. There are three major companies that hold the majority of sales in the carbonated soft drink industry in the United States. They are the Coca Cola Company with 44.1% market share, followed by The Pepsi-Cola Company with 31.4% market share, and Dr. Pepper/Seven Up, Inc. with 14.7% market share. Each company respectively has numerous brands that it sales. These top brands account for almost 73% of soft drink sales in the United States. Dr. Pepper/Seven Up, Inc. owns two of the top ten brands sold. Colas are the dominant flavor in the U.S carbonated soft drink industry; however, popularity for flavored soft drinks has grown in recent years. The changing demographics of the U.S population have been an important factor in the growing popularity of these flavored soft drinks. The possible impact of this factor will be addressed later in the case.
The hypothesis for this experiment was, If three different types of waters (saltwater, fresh water, tap water) are tested, then the liquids won’t evaporate at the same rate and tap water will evaporate at the fastest rate because it won’t have any non-volatile substances to hold it back from evaporating.
Repeat step 4 after another minute continue this for 5 minutes Beaker Start 1 2 3 4 5 Temperature change 1 59°c 57°c 56°c 55°c 52°c 50°c -9°c 2 72°c 71°c 66 °c 63°c 60°c 57°c -15°c 3 86°c 71°c 64°c 58°c 56°c 52°c -34° c 4 72°c 68°c 65°c 60°c 57°c 53°c -19°c Main Investigation ------------------ Aim To find out weather a beaker with a larger surface area cools quicker than one with a smaller surface area. Fair test To make it a fair test we will keep the following the same: Colour of tin - we will use clear beakers Amount of water - we will use 100ml
The purpose of this project was to discover how the pH level affects corrosion rate. The hypothesis was if the pH level affects the corrosion rate, then the lower the pH level is quicker the corrosion rate would be. This will happen because liquids below the pH level of 7 possess stronger acidic attributes. The effect of pH level on corrosion rate was determined by depositing a copper penny in each of three plastic cups, and then three different liquids by their pH levels, were assigned to be displaced into each cup formulating a chemical reaction to be observed. The results collected during this investigation contradicted with the intended result, this experiment was conducted to determine corrosion rate; Dana Puti Vingear (pH level: 4.5) 4 2/3 days, Tropicana Orange Juice (pH level 3.88) 6 1/3 days, and Sprite (pH level: 3.4) 8 days. The results showed that the hypothesis was refuted. This happened because the preconceived idea was that the liquid with the lowest pH level; Sprite, would have the quickest corrosion rate. Dana Puti Vinegar had the quickest corrosion rate proving the statement wrong, it was discovered that it contains ethanoic acid; acid containing twice the amount of carbon dioxide than a regular acid. To further understand this topic, future research could include; how does the amount of liquid incorporated affect the corrosion rate, how does the temperature of the liquid affect the corrosion rate, and how does the purity of iron affect the corrosion rate?
It changes from blue to red with acids but loses its colour in the presence of certain chemicals, one of which is vitamin C. DCPIP solution can be used to test for the presence of vitamin C in foods. Hypothesis Orange juice has the highest content of vitamin C. Citrus fruits have a higher content of vitamin C. The orange and lemon juice contain more vitamin C than the pineapple juice. Furthermore, as lemons are more acidic than oranges, I predict that the orange juice will contain more vitamin C than the lemon juice. Vitamin C affects, the ph the more vitamin C the higher the ph. Variables Independent Variables Different fruit juices (Pineapple, orange and lemon).
There are a variety of beverages available to us today with a wide range of differences, some are flavored, carbonated, low calorie, energy boosters, and just plain water. When it comes down to carbonated drinks there are two major rivalry soda companies dominating the market. Coca Cola and Pepsi are two well know cola distributors with very credible history, but the question still remains one is America’s favorite? With the ongoing competition between Coca-Cola and Pepsi, each company is incorporating new strategies for marketing and advertising there brands. When comparing an advertisement from each of the companies, we will review how they appeal to consumers.
It will resume in debating which soda taste the best, which brand looks the best, and which one will compete in bringing more income between the two sodas.We often have a Pepsi or a Coke when we are hanging out with our friends, or even just simply when watching the television. Sometimes we go in for the taste, sometimes for the sheer pleasure of gulping it down, and maybe due to its popularity, and yet some prefer to just have only one out of the other drink mostly (Kumar). Therefore, which side would you choose to be on, Coca-Cola or Pepsi? You