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Free research essays on topics related to: substances

243 results found, view free essays on page:

  • Storage Tanks Federal Regulations
    542 words
    An underground storage tank (UST) is defined as any one or a combination of tanks that have 10 percent or more of their volume below the surface of the ground in which they are installed. This definition includes the tank, connected underground piping, underground ancillary equipment, and containment system. Further, this definition specifically pertains to UST systems that contain regulated substances such as solvents, methanol, and ethylene glycol (anti-freeze). State and local UST programs be...
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  • Naturally Occurring Earths Surface
    1,004 words
    Gem diamonds were first found in streambeds in Brazil and India. Diamonds are an element of carbon that is produced by the pressurizing of limestone. Diamonds are the hardest naturally occurring substances on earth and it is the most popular of all precious stones. Diamonds are sought after and admired because of their strength and beauty. Good quality diamonds are readily available and this easy access has added to their popularity. Because they are high in quantity the standardization of their...
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  • Mental Events Person Perspective
    868 words
    The relation of consciousness to the material world is puzzle, which has its origin in dualism, a philosophy of mind which posits their fundamental separation. Dualism, in turn, has its roots in folk wisdom. The belief that humans are more than bodies and that there is something in human nature that survives bodily death has its origins in prehistory; it becomes explicit in the mythology of Ancient Egypt and Assyria and was formulated into a philosophical position in the Platonic thought of Anci...
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  • Paddle Pop Stick 2 Co 3 Flame
    663 words
    Experiments to determine the identity of metals by examining the colour of flame when samples of that metal are heated. The aim of this experiment was to find out whether different metals had different reactions when subjected to the flame of the Bunsen burner. This might then allow the classification and identification of certain metals if they have their own reactions, which will be different coloured flames for this experiment. It was hard for me to predict what would occur during the experim...
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  • Arms And Legs Six Million
    1,062 words
    When you think about political issues, many things come to mind. Almost, undoubtedly, abortion is one of those things. There is no arguement sufficient enough to steer my mind away from anti-abortion. Most people think of the circumstance of the woman, and what the pregnancy might cause and therefore jump to the conclusion that seems simplest: eliminate the baby; eliminate the problem. Unfortunately, it is rare for a woman to think about the physical consequences of the abortion itself. First an...
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  • Reefer Madness Illicit Drugs
    1,411 words
    In high school when I first learned about the alluring world of illegal pharmaceuticals, I was scared. My fear was based on all my prior knowledge of drugs was from government propaganda and popular beliefs. Now Im older, and more experienced about drugs. When did the America first begin to be wildly afraid of a plant that has been on this continent since our forefathers ()? Americas fear of illicit drugs can be as far traced back as the prohibition era of the early 20 th century. Pot, a nicknam...
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  • Legalization Of Drugs Amounts Of Money
    742 words
    Our societies are decaying due to an incessant war against drugs. Effects of this war like assault, property crime, racial and economic decriminalization, murder, corruption, and many other undesirable things are developing and burning through societies fueled by the lack of determination between whether or not drugs should be legalized. This polemic is allowing wars effects to keep growing to the point where societies harmony, peace, and stability are being lost. The time has gotten to make a d...
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  • Cricket Deterrents Lab Experiment Science Project
    1,015 words
    Insects have been a nuisance to man since the beginning of time, up until the present. One of the plagues that struck Egypt was swarms of crickets, and locusts, which destroyed crops, and ate entire fields. Swarms of Crickets can cover up to 210 km. There have been cases of up to 100, 000, 000, 000 insects in a swarm (one hundred billion). In these huge masses, they can completely destroy the land and everything on a farm. I chose to do this experiment because when I am at camp I am constantly w...
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  • Illegal Drugs Illegal Substance
    1,170 words
    Drug smuggling is on a current up raise and there seems to be no way of stunting it growth. But here a some ways some states are trying to slow the rate of drug smuggling. In Illinois there is a program called "Operation Cash Crop" or the OCC. This is a combine of the ISP and the DEA. It's goal is to locate places where marijuana is grown then destroy all of it's gardens. During the span of 1983 - 88 these "OCC" led to 442 arrest and destroyed over 2 million marijuana plants. And in 1984 there w...
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  • Risk Assessment Of Using Malathion For Mosquito Control
    1,272 words
    Risk Assessment of Using Malathion for Mosquito Control Every community project / program , whether it's small or large, complex or simple, will always involve risk. Hazards and menace are part and parcel of every decision a person has to make in his life. What is mind boggling is the fact that whatever choice was decided on will not only affect the decision-makers but will also mark other people as well. As community managers, it is our job to do our best not only to minimize the risk involved ...
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  • Human Beings Human Soul
    1,165 words
    Soul as it Relates to the Human Experience In order to discuss the importance of soul in our search for an answer to the question What is it to be human? we must first go back to one of the very first issues tackled in class: the presupposition. It is important to remember that our presupposition is to trust our five given senses to gather evidence regarding our experiences as human beings. In this way, we can view the human experience truthfully, because what is true is what is evident, and we ...
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  • Make A Lava Lamp Make A Lava Alcohol
    414 words
    Things you can use to make a Lava Lamp. There are many things you can use to make a Lava Lamp. Aside from wax and water, there are many other substances that you can use to make the lamp work in the same fashion. For example, you can use mineral oil as the lava and 90 % isopropyl alcohol mixed with 70 % isopropyl alcohol (rubbing alcohol) as the liquid inside the lamp. By mixing the two types of alcohol, you will create a perfect balance. The mineral oil will fall to the bottom in the 90 % alcoh...
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  • Bunsen Burner Hydrochloric Acid
    762 words
    The Problem: I am going to find out how temperature can affect the rate of reaction. Background information: Factors that change the rates of reactions are: ? Temperature? an increase in temperature will make the reaction occur faster. This happens because the particles of that substance move faster when it is heated. Because the particles move faster, they would collide more, making the reaction rate faster. ? Concentration? the increase in concentration, the greater and faster the reaction. Th...
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  • Henry Draper Solar Spectrum Stars
    422 words
    MEGAN JACKSON MS. KEYS SCIENCE DECEMBER 5, 2000 THE STARS AND GALAXIES Have you ever looked up at the sky and wondered what are those bright and shiny things up there. Stars: a natural luminous body visible in the sky especially at night. A self-luminous gaseous celestial body offbeat mass which produces energy by means of nuclear fusion reactions, whose shape is usually spheroidal, and whose size may be as small as the earth or larger than the earth? s orbit. Galaxies: Any of the very large gro...
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  • Parts Of The Body Microscopic Organisms
    1,436 words
    A body has been discovered from a lake. How would you? Identify the body. It is important to try and establish the identity of the victim as quickly as possible. Physical identification is the most common method used to identify a body but this is not always possible as the body may be too decomposed or disfigured. If the body has not been in the water for long articles of clothing, jewellery, scars or tattoos may help to identify the victim. Bodies submerged in water tend to decompose more slow...
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  • Nature Of Things Primary Qualities
    1,389 words
    Enlightenment began with an unparalleled confidence in human reason. The new sciences success in making clear the natural world through Locke, Berkeley, and Hume affected the efforts of philosophy in two ways. The first is by locating the basis of human knowledge in the human mind and its encounter with the physical world. Second is by directing philosophy's attention to an analysis of the mind that was capable of such cognitive success. John Locke set the tone for enlightenment by affirming the...
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  • Boiling Water Pulled Back
    1,172 words
    Medieval Siege Weapons Essay submitted by Will This is a brief paragraph or two on each of the major siege weapons. For the not just the besiegers but also the defenders. Please note most of these weapons were not used alone and often had many different versions of the same weapon. KNIGHT At age seven a son of a noble family was sent to a nobleman or lord, often who was a relative. Here he was a page and taught how to ride a horse, and his manners. At the age of fourteen he was apprenticed to a ...
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  • Boiling Water Pulled Back
    1,161 words
    This is a brief paragraph or two on each of the major siege weapons. For the not just the besiegers but also the defenders. Please note most of these weapons were not used alone and often had many different versions of the same weapon. Knight age seven a son of a noble family was sent to a nobleman or lord, often who was a relative. Here he was a page and taught how to ride a horse, and his manners. At the age of fourteen he was apprenticed to a knight. As the squire to the knight he would take ...
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  • Waste Disposal Air Pollution
    403 words
    Pollution contamination of the environment as a result of human activities. During the 20 th cent. Pollution problems have arisen in all industrialized areas as well as in various inland and coastal waters and stretches of ocean. The capacity of the biosphere to disperse, degrade, and assimilate human wastes is in question. An early sign of environmental limits was the air pollution of the industrial revolution, brought on by the burning of coal to run mills and machinery. It was not until after...
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  • Units Posses Magnitude Things Were Composed Pythagoras
    532 words
    Pythagorean Theorem The Greek philosopher Pythagoras of Samos is responsible of great advances in the study of astronomy, mathematics and the theory of music. A tyrant ruled Samos at the time and Pythagoras fled to southern Italy at about 532 BC. In Croton, Pythagoras founded a religious school that also specialized in philosophy. Pythagoras school made outstanding advances and contributions to the study of mathematics. His school was very private and secretive which made it hard for researchers...
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