DESCRIPTIVE TITLE The Effect of Different Amounts of Sodium Chloride on the displacement of oxygen. INTRODUCTION The dependability of the rate of an enzyme-mediated reaction is based on two factors: the substrate concentration and the concentration and action of the enzyme that catalyzes the reaction (Vander, et. al., 2001). Enzymes are catalysts that produce chemical reactions in cells. Enzymes which are large proteins perform a reaction which acts upon a substance known as a substrate. When
Title: Would increasing the amount of rock salt in the production of ice cream, create a more usable ice cream? Purpose: This experiment was used to see if there was a correlation between the amount of rock salt and the height of an ice cream structure. Background Information: Rock salt or “halite” (Rubin, Ken) is a variation of salt or NaCl. Rock salt is formed when salt water is evaporated, leavening behind positive Na atoms and negative Cl ions. You can find Rock salt in many places like
H2O every time I lower the concentration of sodium thiosulphate by 10cm3. I will observe the 8 experiments repeated 3 times each. Each experiment I will have different amounts of concentration of sodium thiosulphate starting with 90cm3 and I will keep a constant amount of HCL of 10cm3 and I will also add different amounts of H2O starting with 10cm3 and increasing as the concentration of sodium thiosulphate decreases. How am I going to make it a fair test I will use a clean flask for every
Executive Statement A mainframe is a very large, powerful, dedicated, multi-tasking computer where enormous amounts of data are processed, sometimes millions of records a day. The mainframe is set up for specific applications and those applications only; which is totally different from a Personal Computer (PC). A mainframe runs a custom operating system specifically written for particular applications while a PC has a generic operating system such as Windows and is built to handle many different
are essential to all body systems. The six classes are water, minerals, vitamins, proteins, fats, and carbohydrates. Most anyone, who swallows food throughout the day, has these kinds of nutrients; however, most people ingest them in the wrong amounts or with excess food that is useless. Water is the most important of all the nutrients. An athlete depends on water. Water is necessary for all energy production in the body, temperature control, and elimination of the by-products of respiration
support, both financial and mental, is instrumental in achieving a college education, and should be given in equal amounts to both athletic and artistic students. But each year, numerous athletes around the United States are offered college scholarships to recognize them for their talent and to encourage them to play at the university awarding the scholarship. At the same time, the same amount of equally artistically talented students are left to pay for college themselves because they are not offered
the newspaper beneath the flask can no longer be read. Both the Sodium Thiosulphate and the Hydrochloric acid are soluble in water, so the concentration of either can be changed. However I am going to use varying amounts of Sodium Thiosulphate acid and H2O but I will keep the amount of Hydrochloric Acid constant. This is difficult factor to investigate as the readings are recorded by human reactions, which could differ due to the inevitabilities of a human error. According to the collision
that the experiment is fair and that different cans may be of different thicknesses so allowing different amounts of heat through. I will keep the amount of water that I put inside the tin can, the same for each experiment to be fair. I will decide on this amount from my preliminary experiment. The time for each experiment will also be kept the same to ensure the water has had equal amounts of time for it to heat up, again I will decide on the time from my preliminary experiment. The independent
important to know just how much qualifies as an adequate amount. It is recommended to exercise for 30 minutes a day, five days a week. However, shorter more intense sessions may accomplish the same feat. If a child participates in an insignificant amount of exercise per week, it would be wise to perhaps make a change in lifestyle. While obvious methods of exercise such as playing basketball, jogging, or swimming result in adequate exercise amounts, simply becoming more active is a good start. Actions
An Investigation on Burning Food Planning Aim: The aim of this experiment is to determine the effect of differing amounts of fat in the food on the amount of energy per gram or 100 grams in the food. Scientific Knowledge: Here is the table of quantities of different nutrients in food: Type of food Sunflower seeds Pumpkin seeds Pasta Plain crisps Crisp bread Dried peas KJ energy in food 2518 2527 1470 2214 1280 1265 Protein in food 19
The Meat Industry The cattle industry produces vast amounts of strain in the environment. It is energy inefficient, pollutes water, occupies many acres of land, and deteriorates the health of the people who abuse its consumption. The government subsidizes this industry. Therefore, the price paid for meat doesn’t reflect the environmental hazards involved in the process. In order to protect our health and the health of the environment we should pay close attention to our food choices and make sure
over 3 weeks to find out the effect light has on the growth of pea plants. It will take place in an environment with controlled light, with equal amounts of plants being grown in the light and in the dark. All elements of the experiment other than light will be kept the same, such as amount of seeds in each pot, amount of soil in each pot and amount of water given to each plant each day. This will ensure a fair experiment. Prediction: I predict that in general, the plants grown in the light
Biodiversity is different is each part of the world. Not every part of the world contains the same amount of creatures yet there are parts of the world that might contain similar amounts. These regions of the world have similar weather patterns and therefore similar species will develop there but they are not necessarily the same. One of the more important regions of the world that contain a large amount of biodiversity is the tropical rainforest region. “The forests comprise roughly 7% of the dry land
Time is essential element for all forms of leisure and recreational activities. The leisure and recreation industry under took a growth burst in the 1960s from this an expansion in the amount of free time people have for leisure has grown. People cant quite work out how the amount of free time has raised so much. This table shows the time people have for leisure between 1971-1996. % Change over period 1971-81 1981-91 1991-6 1971-96 Leisure
percent of natural greenhouse warming. The remaining 20 percent is due to other gasses that are present in very small amounts? (Murck, Skinner and Porter 488). Carbon dioxide is also a big absorber of the sun?s heat rays. Humans can cause a lot of carbon dioxide to be released. Every time we burn fossil fuels, we release more carbon dioxide. Emissions from cars also increase the amount of carbon dioxide in the atmosphere. If there is more carbon dioxide in the atmosphere more rays from the sun are
but determining their molecular structures and measuring such physical properties as pH, color, and solubility. Wet analysis involves the studying of substances that have been submerged in a solution and microanalysis uses substances in very small amounts. Qualitative chemical analysis is used to detect and identify one or more constituents of a sample. This process involves a wide variety of tests. Ideally, the tests should be simple, direct, and easily performed with available instruments and chemicals
opportunity to spend it. What is worse is much of the Social Security money is received from retirees who are again taxed on the income, creating a "triple tax." For Social Security recipients, there is a fixed amount of income allowed to go untaxed but is taxed once exceeded. However, these base amounts do not change with inflation which creates more and more people who are "unfairly" taxed. Also, this "triple tax" is paid all by the same person whereas the dividend tax is shared by both corporations and
Heat of Combustion of Alcohols PLANNING SECTION Introduction ------------ Alcohols are organic substances, and consist of Hydrogen, Oxygen and Carbon. All alcohols are toxic but the amount that can be tolerated by the human body varies for different alcohols. For example drinking small amounts of Methanol can lead to blindness and even death. Ethanol is the only alcohol that can be drunk safely and is found in all alcoholic drinks. Throughout this investigation I am going to investigate
business; a very profitable business at that. Once wood started being used for beneficial purposes, a snowball effect occurred by the settlers to cut down every tree in sight and turn it into a profit. Logging was the process of cutting down numerous amounts of trees to use wood in a capitalist way or to clear land for agricultural purposes. Two main techniques were used by the settlers to clear away these large forests. One technique was called girdling. Girdling is the process of cutting a strip
and buffering capacity Introduction ------------ A buffer is a physical area or object protecting something. A chemical "buffer" is a mixture of two compounds that protects the pH of a solution from undergoing large changes when small amounts of acid (in the form of hydroxonium ion [H3O+]) or base (in the form of hydroxide ion [OH-]) are added. Buffers usually contain a weak acid and its conjugate base or a weak base and its conjugate acid. One of the two compounds in a buffering system