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Aluminium - Aluminium The history of Aluminium use Aluminium is now one of the most widely used metals, but one of the hardest to refine due to it's reactivity with other elements. Even as late as the turn of the century, Aluminium was considered very valuable and in turn expensive, even more expensive than gold. In some cultures, when a function was held (for example, a party) by wealthy people, only the most honored guests would be given Aluminium cutlery, the others had to make do with gold or silver cutlery....   [tags: essays research papers] 487 words
(1.4 pages)
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Alzheimer and Aluminium - ... Some cases of Presenile Alzheimer disease (occurring before the age of 65) run in families and are associated with mutation in the beta-amyloid precursor protein (APP) gene implicated in Alzheimer Disease. Elderly cases of Alzheimer disease are usually sporadic. Twins with typical genes (monozygotic twin pairs) do not share the same chance of developing Alzheimer disease, which provide evidence that environmental factors are highly important in the incidence of Alzheimer disease. Injecting laboratory animals like rabbits with aluminium salts results in appearance of extensive neurofibrillary changes in the spinal cord and various cortical regions....   [tags: Medical Research]
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Aluminium in Australia - Aluminium in Australia ====================== Intro ----- For my issue essay I have chosen the "Production of aluminium" because of its economic importance to Australia. I have also included a flow chart and map. History ======= The explorer Matthew Flinders noted the reddish colored cliffs whilst sailing around the Cape York Peninsula in 1802. In 1955 a geologist discovered deposits at Weipa. The government established Australia's first aluminium smelter at Bell Bay in Tasmania in 1955. The Australian aluminium industry has made important contributions to the economic growth of the nation....   [tags: Economics] 568 words
(1.6 pages)
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Experiment to Find the Specific Heat Capacity of an Aluminium Block - Experiment to Find the Specific Heat Capacity of an Aluminium Block DATA COLLECTION: Mass(m) (kg) (5dp) Current(I) (A) (2dp) Voltage (V) (2dp) Time(t) (s) (0dp) Initial temp(T1) (ºC) (2sf) Final temp(T2) (ºC) (2sf) +/-( 5*10^ -4) % +/- (1*10^ -1) % +/- (4*10^ -2) % +/- (5*10^-1)s +/- 0.5 ºC +/- (5*10^ -1) ºC 0.99577 3.70 12.07 0 16.0 16.0 0.99577 3.70 12.08 60 16.0 18.0 0.99577 3.68 12.10 120 16.0 20.0 0.99577 3.66 12.11 180 16.0 22.0 0.99577 3.68 12.10 240 16.0 25.0 0.99577 3.64 12.08 300 16.0 27.0 0.99577 3.64 12.08 360 16.0 30.0 0.99577 3.65 12.03 420 16.0 33.0 DATA PROCESSING AND PRESENTATION: As Q=m.c.(T2-T1) Where Q= energy transfer C= specific heat capacity We can rearrange this to give: C= Q/(m(T2-T1)) And as power = energy/time Therefore E= Pt = Q And P = IV therefore Q = IVt Hence C= IVt/(m(T2-T1)) Which is rearranged to the form y=px + c to give: T2= (IVt / (m.C)) + T1....   [tags: Papers] 481 words
(1.4 pages)
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An Analysis of the Properties of Aluminum - An Analysis of the Properties of Aluminum Physically, chemically and mechanically aluminium is a metal like steel, brass, copper, zinc, lead or titanium. It can be melted, cast, formed and machined much like these metals and it conducts electric current. In fact often the same equipment and fabrication methods are used as for steel. Light Weight Aluminium is a very light metal with a specific weight of 2.7 g/cm3, about a third that of steel. For example, the use of aluminium in vehicles reduces dead-weight and energy consumption while increasing load capacity....   [tags: Papers] 1111 words
(3.2 pages)
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Electrolysis - Electrolysis Electrolysis is a chemical process by which electrical currents can be passed through solutions. Pure water cannot conduct electricity, but if a salt such as Sodium Chloride is dissolved in it, the solutions will start conducting if two electrodes are placed in it with a battery that provides the initial current. When we close the switch, copper ions on the anode will start to move through the solution to the cathode. The copper atoms have already given up two electrons to become ions and their electrons are free to move in the wires....   [tags: Papers] 491 words
(1.4 pages)
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Alloy Wheels - Alloys They are lightweight, better conductors of heat and fit more snugly than steel variants. But most importantly they improve fuel efficiency...No wonder aluminium alloy wheels are fast becoming the preferred accessory of car consumers IT'S now considered a wonder material for autoville. Aluminium, which is increasingly replacing steel in car factories across the world (including some of the more premium names in the business like BMW and Mercedes Benz), is also the preferred material for wheels, both automotive and otherwise....   [tags: Case Study, solution] 939 words
(2.7 pages)
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Which two metals combined together give the higher voltage when reacting with acid - Which two metals combined together give the higher voltage when reacting with acid Introduction In this investigation we will find out which two metals combined together give the higher voltage when reacting with acid. The metals used will be: · Aluminium · Zinc · Iron · Tin · Lead · Nickel · Copper To make a prediction on what metals will be the ones that give the highest voltage when combined together you need to find out if the position in which the metals are at in the reactivity series would make a difference, and if it does, how....   [tags: GCSE Chemistry Coursework Investigation] 1196 words
(3.4 pages)
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Investigating Which Metal Combination Gives Out the Most Voltage in a Solution - Investigating Which Metal Combination Gives Out the Most Voltage in a Solution Background Metals are an order of chemical elements in the periodic table. They are arranged in atomic number. All of them are solid (apart from mercury), good thermal and electrical conductors and are shiny when polished. Metals and non - metals are separated in the table by a diagonal line. -------------------------------------------------------------------- The reactivity series is a table to show which metals are most reactive to the least reactive....   [tags: Papers] 919 words
(2.6 pages)
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The Development Of The Periodic Table - The Development Of The Periodic Table The modern periodic table is based on Mendeleev's table. He left gaps in his table for elements yet to be discovered but now all the gaps have been filled in because new elements have been discovered over the last 140years. A whole new group was introduced for the noble gases because none were discovered then. The elements are arranged in order of increasing atomic number. The arrangement of electrons in atoms has helped to explain the patterns of behaviour and properties of the elements....   [tags: Papers] 909 words
(2.6 pages)
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Expansion and Contraction of Materials - Expansion and Contraction of Materials When most materials are heated they expand and this increase their volume. One example of expansion is the fitting of the starter ring gear to the flywheel. The gear is heated until it expands sufficiently to pass over the rim of the flywheel, and when it is cool the gear tries to return to its original size, this gripping the flywheel with considerable force. All metals do not expand equally when heated through the same range of temperature, e.g. aluminium alloy expands more than cast iron; copper and brass expand more than mild steel....   [tags: Papers] 902 words
(2.6 pages)
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Heat Energy Investigation - Heat Energy Investigation In this experiment we will as accurately as possible measure the voltage, current, time, start temperature, final temperature and the mass of 7 different substances. We will measure the voltage to make the experiment more accurate, we will do this by making sure that every time we do an experiment we will keep the volts to 12v and nothing else, as this could affect the overall result. It is also needed as part of an equation that will be done later on....   [tags: Papers] 1170 words
(3.3 pages)
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Rocks and the Earth - Rocks and the Earth There are 3 main types of rock . These are sedimentary , metamorphic and igneous . Igneous rocks are formed by molten lava escaping from the mantle and cooling down to form solid , crystalline rock. The faster the new rock cools the smaller the crystals in the rock are. Eg Granite Sedimentary rocks are made when small chippings of rock accumulate on the seabed and are crushed together over thousands of years. These chippings are worn from rocks by wind, rain and ice , this is called erosion or weathering....   [tags: Papers] 728 words
(2.1 pages)
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The Effect of Different Types of Insulation on Heat Retention - The Effect of Different Types of Insulation on Heat Retention Aim I am going to investigate the effect of different types of material on heat retention. "Which of the four materials, cotton, foam, aluminium foil and bubble wrap, is the best insulator?" Hypothesis The four materials tested in this experiment are cotton, foam, aluminium foil, and bubble wrap. Materials that are good insulators will absorb heat slowly and therefore the water inside the cup will stay warm for a longer period of time....   [tags: Papers] 1350 words
(3.9 pages)
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The Modern Day Periodic Table - The Modern Day Periodic Table 1) The modern day periodic table is based on an earlier table proposed by Mendeleev. The modern day periodic table of elements is arranged in order of increasing atomic number. This differs from earlier attempts to classify elements. Döbreiner the first to attempt it classified elements using their atomic weights. He identified triads a set of three elements with similar properties. Elements are no longer identified into triads but into groups and are now arranged in order of increasing atomic number....   [tags: Papers] 1041 words
(3 pages)
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The Periodic Table - The Periodic Table ‘The nineteenth century was a golden age for the discovery of elements [1]’. This was when scientist began to look for patterns and behaviours of elements. The early periodic table was arranged by the elements relative atomic mass rather than atomic number, which is now seen in the modern periodic table. Johann Dobereiner was the first to attempt to classify elements using their RAM (relative atomic mass). He identified that in a set of three elements (then known) in a group have similar properties (e.g....   [tags: Papers] 1002 words
(2.9 pages)
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How the Length of a Wire Affects Its Resistance - How the Length of a Wire Affects Its Resistance Introduction: I'm going to investigate the relationship between the length of a wire and it's resistance. A few things determine the resistance of a wire. Firstly and possibly the most important is the length. A material of long wire has more resistance than a short wire. For example take a straw and put some water in mouth, and try to push it through the straw. Then cut ¾'s of the straw off and try again. It should be much easier this time (i.e., less resistance)....   [tags: Papers] 1390 words
(4 pages)
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Radioactivity Experiments - Radioactivity Experiments Aim: To determine the penetrating power and the range in air of the three radioactive emissions alpha, beta and gamma. Apparatus: * gm tube, * clamp stand, * the counter thing, * ruler, * set-square Method of penetrating power of Alpha particles, Beta particles & Gamma Rays: The equipment was set up as shown below to measure the penetrating power of each radioactive source. Geiger-Muller Tube Again the measurements were taken without the absorber to measure background radiation....   [tags: Papers] 948 words
(2.7 pages)
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Calculating the DHc of the Combustion of Alcohols - Calculating the DHc of the Combustion of Alcohols Aim: To work out the DHc of the alcohols: ethanol, methanol, pentan-1-ol, butan-1-ol and propan-1-ol by using calorimetry. The idea in this experiment is that if you burn a substance to heat water there is a link between the rise in temperature of the water and the amount of energy the substance contains. For this you need to know the amount of the substance you have burned and the volume and mass of the water you are heating....   [tags: Papers] 334 words
(1 pages)
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Technical Report The Construction of Alloy Wheels - Technical Report The Construction of Alloy Wheels Introduction Aluminium alloy wheels are now used in all branches of Motor Racing, ranging from Touring cars and Rally cars to Formula One cars. The Alloy wheels offer far superior mechanical properties than the conventional steel wheels formerly used. These benefits include reduced un-sprung weight, i.e. not held by the suspension, providing more precise steering input and improved responsiveness. Alloy wheels also improve acceleration and braking due to the reduction of weight....   [tags: Design and Technology]
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The Problem of Acid Rain - The Problem of Acid Rain WHAT CAUSES ACID RAIN When power stations, factories, houses and cars release pollution into the air it has chemicals in it called sulphur dioxide and nitrogen oxides. SULPHUR DIOXIDE: Man-made sulphur dioxide comes mainly from burning fossils fuels in power stations. It then mixes with water in the atmosphere to make sulphuric acid, which will later fall as acid rain. NITROGEN OXIDES: Nitrogen oxides are also man-made and mainly come from car exhausts....   [tags: Papers] 859 words
(2.5 pages)
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Air as an Insulator - Air as an Insulator This experiment investigates the loss of heat through different insulating materials. Heat is loss through conduction, convection and radiation these three procedures could be acting on the experiment whilst I am working on it. Conduction: conduction usually occurs in metals they allow energy to spread through them quickly. It is the transfer of heat energy without the substance itself moving. Convection: Convection mainly occurs in liquids and gases. As the liquid or gas rises up it replaces the colder, dense regions....   [tags: Papers] 1060 words
(3 pages)
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Monopolies that make super normal profits aren’t in the public - Monopolies that make super normal profits aren’t in the public interest because they could charge a lower price than they do. Introduction: Monopoly is an emotive word, and the immediate reaction is that it should be replaced with competition. In this investigation we are going to look at what is a monopoly, what are barriers to entry and what types of barriers there are, what are normal and supernormal profits and to they bear any benefits to the public. What is a monopoly. Monopoly is a market situation in which there is a single seller of a product and there are no close substitutes of this product in the market....   [tags: Business and Management Studies] 1153 words
(3.3 pages)
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Turning a Mild Steel Bar - TASK: Turning a Mild Steel Bar.We were each given a mild steel bar to work into the shape shown in the drawing found on the following pages, TURNING TASK: Turning a Mild Steel Bar. We were each given a mild steel bar to work into the shape shown in the drawing found on the following pages, to do this we used the Turning Lathe in the workshop, but before we could start some measurements had to be taken. This meant using a micrometer to determine the diameter of the bar to begin with. A micrometer allows a measurement of the size of a body....   [tags: Design and Technology] 2186 words
(6.2 pages)
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advantages and disadvantages of vertical integration - ADVANTAGES OF VERTICAL INTEGRATION It leads to reduction of transportation costs as the common ownership results in closer geographic proximity. The transaction costs can be controlled if a firm acquires the other firms in the vertical chain, then one division of the same company will transfer goods to other divisions. So, transaction costs in form of transport, cost of negotiation, cost of control etc. will be eliminated. The overall average cost of the firm will decrease because if the divisions are under same management control then there will be in house supply and departmental heads will determine the transfer price....   [tags: essays research papers] 1124 words
(3.2 pages)
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The Success of The Carajas Project - The Success of The Carajas Project The Carajas Project was launched in 1985 in the state of Para in the north-eastern part of Brazil. The area covered the scheme is larger than the UK and France combined. Today, it is the backbone of the economic and social development of a large area in the north east of Brazil. At Carajas, about 45 million tonnes of iron ore is processed annually, as well as large quantities of manganese and of gold. It is also producing copper, bauxite and other metals. This is all controlled by an environment policy that strives to conserve the Amazonian eco-systems....   [tags: Brazil Iron Ore Natural Resources Trade Essays] 1388 words
(4 pages)
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The Trend in Chemical Properties of the Alkaline Earth Metals - The Trend in Chemical Properties of the Alkaline Earth Metals Chemical Properties of the Alkaline Earth Metals The properties of the alkaline earth metals that we have discussed so far have all been physical properties. However an interesting aspect of periodicity is that chemical properties also show distinct trends, both down groups and across periods. To illustrate this, we will look at the reactions of the individual alkaline earth metals with water and consider trends down the group....   [tags: Papers] 868 words
(2.5 pages)
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Corporate Strategy - ... This occurred because Australia undertook an intensive measure of importing products from China. In addition to this, Capral had to compete with unfavorable market conditions that were in existence. These conditions involved the government regulations, and rules on customs. As a consequent of this, an enormous amount of price dumping of products made of Aluminium was occurring in Australia (Capral 2011). The action of China to devalue its currency did more harm than good for the Australian industry....   [tags: Business Analysis ]
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I Love Electronics - I Love Electronics I have been interested in electronics since I was a child. At the age 5 I made a plug of aluminium foil and I put it in the electrical wall socket. To my surprise I got an electric shock, the wall and socket consequently became blackened, we had no electricity for the rest of the day (I wasn't at all very popular). Following on from this incident, I was often found sitting by the side of the blackened socket looking at it and thinking. I never did try to make another aluminium foil plug....   [tags: College Admissions Essays] 359 words
(1 pages)
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Beta Particles - Aim: I will investigate how the field strength varies the deflection of Beta Particles. Preliminary Work I started my preliminary work because, when I started my measurements using 2 coils used in experiments to deflect electrons from and electron gun. While testing for the deflection of beta particles, I found that beta radiation was scattered in a very large cone, I can not get any readings with amount of beta radiation scattering. So I would have to construct some type of shielding for this investigation, this is so I can measure the deflection more easily....   [tags: essays research papers] 2191 words
(6.3 pages)
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Frank J. Horgan Filtration Plant - Frank J. Horgan Filtration Plant Introduction The Frank J. Horgan Filtration Plant is located Southeast of Toronto on the shores of Lake Ontario (See map). Its purpose is to provide safe drinking water to our taps by filtering the water. The water is gathered from Lake Ontario. This plant has a production capacity of 455 million litres per day to supply the residents of Toronto with drinking water. Its average production of drinking water is 355 million litres per day. It is also the newest filtration plant in Toronto....   [tags: essays research papers] 1143 words
(3.3 pages)
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The Age of Discovery of Elements - The Age of Discovery of Elements "The nineteenth century was the golden age for the discovery of elements. Scientists began to look for patterns of behaviour between elements."*1 Johann Döbereiner, a German chemist, was the first to attempt to categorise the elements. He used their atomic weights, which we now know as atomic masses. In 1863, John Newlands, produced something that he called the 'Law of Octaves'....   [tags: Papers] 879 words
(2.5 pages)
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Metal Compounds - Metal Compounds Element = substance made from one type of atom E.g. Al aluminium Compound = 2 or more elements chemically bound E.g. CO2 Atomic number = the no. of protons in one atom of an element E.g. Li37 Mass number = the total number of protons and neutrons in one atom of one element E.g. Li37 Isotopes = two or more atoms with the same number of protons and electrons but different numbers of neutrons. E.g. Cl35 Cl37 Mass spectrometer = most accurate method of determining atomic and molar masses....   [tags: Papers] 1721 words
(4.9 pages)
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The Discovering of Chemical Elements - The Discovering of Chemical Elements Throughout the nineteenth century many scientists attempted to classify the chemical elements according to their physical and chemical properties using patterns and mathematical formulae to correlate the properties of different elements. In 1829 German chemist Johann Döbereiner proposed the Law of Triads - Nature contains triads of elements where the middle element has properties that are an average of the other two members of the triad when ordered by the atomic weight1....   [tags: Papers] 1315 words
(3.8 pages)
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Electroplating of Copper Using Copper Electrodes - Electroplating of Copper Using Copper Electrodes The aim of this investigation is to find how the variation in current will affect the mass changes of the copper electrodes in a copper sulphate solution. Introduction ------------ In this study it was stated that an investigation should take place to research the electroplating of copper using copper electrodes. In a simplistic way of putting this, is that it is using electrolysis. In order for this to be introduced properly a fairly high level of understanding of electrolysis must be met....   [tags: Papers] 1627 words
(4.6 pages)
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Exploring the Role of Chemists - Exploring the Role of Chemists It was Lavoisier who divided the few elements known in the 1700's into four classes, and then John Dalton made atoms even more convincing, suggesting that the mass of an atom was it's most important property. In the nineteenth century Johann Döbereiner was the first to attempt to classify elements using their relative atomic mass. He also identified a number of ‘triads’ in the list of elements then known. Each triad was a set of 3 elements that have similar properties (e.g....   [tags: Papers] 647 words
(1.8 pages)
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The Uses and Significance of Group Two Compounds - The Uses and Significance of Group Two Compounds The group two elements consist of Beryllium, Magnesium, Calcium, Strontium, Barium and Radium. These are known as the ‘Group Two elements’ because of their unique electron division. Each one of these elements, consists of two outer shell electrons. Because of the lack of outer electrons, these elements are highly reactive. Group two electrons have a positive Two charge or +ve. The Group 2 elements are all metals with a shiny, silvery-white colour....   [tags: Papers] 736 words
(2.1 pages)
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The Content of Two Antacids - The purpose of this experiment is to investigate and compare the basic content of two antacids and also compare the prices and thus decide which antacid is more cost effective. This experiment is not hugely significant to the wider scientific community however it can help an uninformed consumer purchase a more cost effective antacid and understand how antacids work. The method used in this experiment is called a back titration. This involves adding HCl to an antacid tablet until an excess of HCl is reached and then titrating that solution against a 0.1mol NaOH solution....   [tags: Antacids, science experiments, ] 2178 words
(6.2 pages)
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Determine the Identity of Metals - Determine the Identity of Metals 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 experiment but I was able to write a hypothesis....   [tags: science] 645 words
(1.8 pages)
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Bases and Alkalis - Bases and Alkalis A base is a compound that reacts with and neutralises an acid. The reaction forms a salt plus water. Alkalis are a type of base - ones that dissolve in water. Alkalis are compounds that react and neutralise acids. Like bases, they form a salt and water in the reaction. Alkalis turn red litmus indicator paper blue and they cause Universal Indicator paper to turn blue or purple. Alkaline solutions have a pH value greater than 7. Alkaline solutions feel soapy and are corrosive....   [tags: Papers] 601 words
(1.7 pages)
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Fibreglass-Research and presentation - Fibreglass-Research and presentation Fibreglass is the colloquial name for the material Glass Reinforced Plastic (GRP). A composite material is an engineered material made from two or more components. Composite materials are composed of just two phases; one is termed the matrix, which is continuous and surrounds the other phase, often called the dispersed phase. Fibreglass is classified as a composite material, which consists of strands of glass embedded in a polymer resin as the matrix. Firstly I will start by explaining the properties of the individual materials that fibre glass consists of....   [tags: Design and Technology] 1065 words
(3 pages)
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Chemistry study - CHEMISTRY STUDY NOTES: Module 1: The Chemical Earth 1.1 Construct word and balanced formulae equations of chemical reactions as they are encountered. STEPS: 1. General equation 2. Word equation 3. Formula equation 4. Balanced equation 5. Ionic equation Neutralisation: 1. base + acid  salt + water 2. calcium hydroxide (aq) + hydrochloric acid (aq)  calcium chloride + water 3. _____________________________________________________ 4. _____________________________________________________ 5....   [tags: essays research papers] 1587 words
(4.5 pages)
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Resources and Development in an economy - Resources and Development in an economy Resources and Development a) Resources influence the structure and progress of an economy. If something is considered a resource it is potentially of economic benefit. However there are three differing types of resources, and it is the relative abundance of all these that dictates the economic structure. It is debatable whether the presence of one resource, e.g. Coal (a natural resource), leads in itself to economic sustainability and strength. There are human, capital and natural resources....   [tags: Economics] 1849 words
(5.3 pages)
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Critical Analysis of Michael Landy's "Scrapheap Services" Three-Dimensional Sculpture - Michael Landy's "Scrapheap Services" is a 3D sculpture on display in the Tate Modern Gallery. It shows 3 men in boiler suits, their heads bent, as they are intent on their work in the disposing of `people who no longer play a useful role in society'. The room is scattered with little people cut out of discarded material such as aluminium cans, cigarette boxes and fast food wrappers. Uniformed mannequins are in the process of sweeping up the figures, gathering them into bins, and consigning them to a shredding machine called "The Vulture", as vultures clear aware rotten carcasses the machine will do similar....   [tags: Artists] 636 words
(1.8 pages)
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Lithography - Lithography This process uses a flat aluminium printing plate and works on the principle that oil and water do not mix. The image is transferred onto the plate photographically through ultra-violet light shining through a negative. The plate is then washed with a chemical that makes the image area attractive to the oily ink. The non-image area is later dampened with water to repel the ink. To lengthen the life of the printing plate and prevent the paper becoming damp through contact with the water, a rubber blanket transfers the ink from the plate to the paper....   [tags: Papers] 762 words
(2.2 pages)
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Business Plan - Business Plan My group and I are members of a small chemical company that are going in to business to produce Epsom salts. (Information on Epsom salts can be found in 'background information). Our company name is 'The Epsom Company'. In order to be the best company we have to ensure the Epsom salts we produce are a good quality. But despite this we are also looking to make a profit and so cost must be as limited as possible. We will need to pay strict attention to the cost of apparatus and equipment and aim to use a minimum amount of chemicals to produce the maximum amount of Epsom salts....   [tags: Papers] 3608 words
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Volume's Effect on a Copper Sulphate Solution - Volume's Effect on a Copper Sulphate Solution We are trying to find out if the current though a copper sulphate solutions volume is increased. To find this information out I shall perform an experiment using the following equipment; · 1 power pack · 1 beaker · 2 carbon rods for anode and cathode · 1 ammeter · 1 measuring cylinder · 2 crocodile clip wirers I shall also be using 60cm3 volume of copper sulphate in my preliminary results to decide upon the concentration of copper sulphate and the voltage I shall use....   [tags: Papers] 922 words
(2.6 pages)
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Investigation into the Factors that Affect How Well an Object Keeps Warmth - Investigation into the Factors that Affect How Well an Object Keeps Warmth Aim In this experiment my aim is to try and distinguish what factors affect how well an object keeps warm. For practical purposes, in this experiment I shall be using water, as it is easy to get hold of. Prediction ========== In this experiment I would expect to find that the heat of an object is affected by its surroundings. However, I do not think that all different factors will affect the results, which I will find....   [tags: Papers] 1134 words
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The Periodic Table - The Periodic Table The development of the periodic table began in the 19th century. Johan Döbereiner attempted to classify the elements by their atomic weight. He identified 'triads', three elements with similar properties, such as chlorine, bromine and iodine. The element in the middle, bromine would have an atomic weight which would be the average of chlorine and iodine. Cl - 35 Br - 80 I - 127 (127+35)/2 = 81 An illustration of the triad theory (1) John Newlands then introduced the Law of Octaves, stating that every eighth element in the table had similar properties....   [tags: Papers] 1033 words
(3 pages)
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Heating and Cooling Investigation - Heating and Cooling Investigation Aim- to find out if different sized cans affect the temperature of 140ml of boiled water, when they are left alone to cool. In this experiment, I will be using two different sized cans (one 12cm tall holding 330ml and another 9cm tall holding 150ml). I will be seeing if each can keeps the boiled water warm for a period of time and testing to find out which one is the best. Fair Test To make this a fair test, I will have to do many things. Firstly, I will use the same amount of water (140ml) at the same temperature, as it will have to start at the same temperature to keep it fair and also have the same amount of water to test on....   [tags: Papers] 541 words
(1.5 pages)
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The Development of the Periodic Table - The Development of the Periodic Table During the 19th Century there were several scientific breakthroughs regarding classifying, ordering and predicting elements. The first came from Johann Dobereiner in 1829. He ordered all the known elements by atomic weight, (relative atomic mass) and began to identify triads. These were groups of three elements which had similar properties, and whose middle element's mass had an approximately the average masses of the other two. The first triad he noted was Barium, Calcium and Strontium....   [tags: Papers] 1549 words
(4.4 pages)
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Investigation into the Combustion of Alcohols - Investigation into the Combustion of Alcohols Aim In this investigation I will be burning alcohol's to heat up a can of water. I will be burning seven alcohol's, ethanol, propanol, butanol, pentanol, hexanol, heptanol and octanol. The aim is to find out how much energy is produced when burning these alcohols. Alcohol's react with oxygen in the air to form water and carbon dioxide. The reaction that is involved in burning alcohols is exothermic because heat is given out. From this reason the reactant energy is higher than that of the product....   [tags: Papers] 1314 words
(3.8 pages)
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Comparison Between Compact Disc (CD) and Digital Versetile Disc (DVD) - Comparison Between Compact Disc (CD) and Digital Versetile Disc (DVD) Compact Disc (CD): Optical disc technology CD just happens to be one of the first in a long line of optical media which are read using a laser beam which is reflected in varying intensity from the surface of a rapidly rotating metallic disc embedded in a protective plastic substrate. Other optical disc formats include the Philips Video Laserdisc (LD) for recording of analogue video signals, and more recently the minaturized Sony MiniDisc (MD) for digital audio and the much denser Toshiba Digital Video Disc (DVD) which has myriad applications, including high-definition digital video....   [tags: Papers] 2955 words
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Determining how Economical Different Types of Fuel - Determining how Economical Different Types of Fuel Aim Our aim is to investigate how economical different types of fuel are. We have four different types of fuel Propanol, Ethanol, Butanol, Methanol and we would like to see which uses their fuel most economically. We are going to compare the energy difference between fuels. Equipment Retort Stand Clamp Tin can Metal heat shield Thermometer Aluminium foil Fuel burner Fuels, Propanol, Ethanol, Methanol, Butanol Diagram [IMAGE] Preliminary Ideas We will need to make it a fair test, therefore we will need to treat all of the experiments we do exactly the same....   [tags: Papers] 833 words
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Enthalpy of Combustion of Alcohols - Enthalpy of Combustion of Alcohols Procedure 1. Put 150³ of cold water in an aluminium calorimeter and record its temperature. 2. Support the calorimeter over a spirit burner containing the ethanol you are going to burn. Arrange a suitable draft exclusion system to reduce heat loss. 3. Weigh the burner and Alcohol. 4. Replace the burner under the calorimeter and light the wick. 5. Stir the water with a thermometer. 6. When the water temperature has risen by between 15 and 20ºC extinguish the burner but continue to stir it until the temperature stops rising....   [tags: Papers] 1428 words
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Investigating the Heat Capacity of Metals - Investigating the Heat Capacity of Metals Aim: My aim is to measure the specific heat capacity of 4 metals and find out if they all have the same specific heat capacity or different. Prediction: The specific heat capacity is the amount of heat energy needed to raise 1kg by 1 C and is measured in joules. My prediction is that the metal with the least massive atoms will heat up more quickly because they require less heat energy to make the molecules move around and heat up....   [tags: Papers] 982 words
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Investigating the Thermal Decomposition Of Metal Carbonates - Investigating the Thermal Decomposition Of Metal Carbonates Aim: To investigate a range of metal carbonates and see if they thermally decompose. Thermal Decomposition INVESTIGATION [IMAGE] ------- Written By Tauqir Sharif ------------------------ Research: When a metal is thermally decomposed the bond between the metal and its carbonate (carbon and oxygen) is removed and the carbonate is released as carbon dioxide. Metal Carbonate = Metal Oxide + Carbon Dioxide Malachite is an ore of copper....   [tags: Papers] 2469 words
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Exploration of Energy Resources - Exploration of Energy Resources Background: Energy consists of many types of categories: * Sound Energy * Heat Energy * Light Energy * Electrical Energy * Kinetic Energy * Chemical Energy * Nuclear Energy * Gravitational Potential Energy * Elastical Potential Energy The conservation of energy law states: It is not possible to create or destroy energy. What disappears in one form must re-appear in another. What are energy resources....   [tags: Papers] 1778 words
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Investigation of Plan Nutrients - Investigation of Plan Nutrients For plants to grow they need more than just Carbon Dioxide, water and sunlight. Although they can though can make sugar from just these three things. Plants need protein; to make protein (for its structure and enzymes) the plant needs to take in nitrates. The nitrates are used to change the sugars into protein. An example for this, Chlorophyll is the green pigment in Chloroplasts, which absorbs sunlight for photosynthesise the Chlorophyll contains Magnesium....   [tags: Papers] 977 words
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Resistance Investigation - Resistance Investigation Introduction Electricity is something we have all around us every day but we never really think about it, even though it is such an important part of ours life’s. What is electricity. Before investigating the resistance of different metals it is important to understand the principal of electricity. Electricity is formed by the movement or flow of electrons being attracted away from their atoms by an applied force. This is easier to do with the some elements than with others....   [tags: Papers] 2039 words
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Investigating Which Material is Most Efficient for Insulation - Investigating Which Material is Most Efficient for Insulation I WILL NEED…. 1. A measuring cylinder to measure to volume of water needed (also to make it a fair test). 2. copper cans, to hold the boiled water. 3. A kettle to boil the water. 4. A thermometer, to measure the temperature of the water. 5. Elastic bands, to keep the material held around the copper can. 6. Stopwatch, to time the temperature as it decreases. 7. Safety goggles, for protection from the boiling water. The three insulators put to the test: a) Aluminium Foil b) Cotton Wool c) Bubble Wrap MY PLAN My experiment requires having three copper cans that of which will be covered in the three insulating (or non-insulating) materials that have been chosen....   [tags: Papers] 967 words
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Corrosion - ... Applied before installation active corrosion management requires ongoing operation to protect the material and is specified to last the lifetime gauged by environmental factors. Basic active measures include 2.1 ANODIC PROTECTION A coating is applied which is anodic to the substrate, such as zinc aluminium or cadmium. On steel such coatings are generally called sacrificial coatings. They protect the substrate by acting as a sacrificial anode for the steel which is Cathodic to zinc. 2.2 CATHODIC PROTECTION An electrical system for prevention of rust, corrosion, and pitting of metal surfaces which are in contact with water or soil; this creates a concentration cell generating a DC current similar to ahalf-cell an example is shown in Figure 1....   [tags: Research Analysis] 1244 words
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Acid Rain - ... But with the advancement of technology almost everyone use a motor vehicle (some use more than one) and obviously the amount of fossil fuels combusted has increased drastically in number which in turn results both in emission and atmospheric precipitation of oxides of sulphur and nitrogen. EFFECTS Acid rain without any doubt can be understood that is harmful to nature and natural resources. Imagine you are walking on the roads on a fine day and suddenly heavy volume of acid falls on your head....   [tags: Environmental Science]
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Japan - Breif History from WWII - Japan - Breif History from WWII INTRODUTION: Without a good history, no nation can ever be considered developed. It is the history that makes or breaks a country. Japans history is very unique. During and after WWII their country was in ruins - literally. All their previous allies had deserted them, they were alone and destroyed by the Americans, an unlikely ally. I will focus on the impacts that America had on Japan, and then how Japan got themselves to the title of "The Second Most Developed Country"....   [tags: Japanese Japan History] 461 words
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Car And Bicycle Brakes - Caliper Brakes Effectiveness: good mechanical advantage as it allows the operator to brake with little effort on the hydraulic lever, which needs to be squeezed. Material: Calipers are fixed mount, opposed piston calipers cast from aluminium alloy. Calipers are the hydraulic clamp portion of the disc braking system. Manufactured from either ferrous or non-ferrous materials and bolted firmly to the suspension upright(or knuckle) the caliper holds the pads in place and, through the action hydraulic pistons actuated by the master cylinder, force them against the rotating surface of the disc when pressure is applied to the brake pedal....   [tags: essays research papers] 377 words
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Scale of Production of Signs - Scale of Production of Signs This sign is an example of a mass produced, cheap manufacturing cost sign. The reason for this sign being cheap to manufacture is that the sign is made out of steel or aluminium and also may have either a reflective vinyl for those used at night. This sign may also have a high-density PVC backing to it as it is a lightweight plastic that can provide a number of colours and is relatively cheap. This sign would need to be mass produced as this sign is very common and not very large....   [tags: Papers] 385 words
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The Success of Directing Roots and Water: Blessing - The Success of Directing Roots and Water: Blessing The film begins with a view of the cracked, red, hard earth. The area is barren, still and quiet. Then a clay pot falls from above, cracking as it meets the ground. This imagery and the sudden harsh sound of the breaking pot help reflect the pain and harsh reality of their situation in the first two lines of the poem, “The skin cracks like a pod. There never is enough water.” The word “cracks” in the poem is onomatopoeia, this sound is then carried through into the film to put forward the same effect which is done successfully....   [tags: Papers] 409 words
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Uses of Nuclear Radiation - Uses of nuclear radiation Smoke Detectors Smoke alarms contain a weak source made of Americium-241.Alpha particles are emitted from here, which ionise the air, so that the air conducts electricity and a small current flows. If smoke enters the alarm, this absorbs the particles, the current reduces, and the alarm sounds. Thickness Control In paper mills, the thickness of the paper can be controlled by measuring how much beta radiation passes through the paper to a Geiger counter. The counter controls the pressure of the rollers to give the correct thickness....   [tags: essays research papers] 456 words
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Designer Charles Eames' Design Icon: The Eames Chair - The Eames chair designed by Charles Eames in 1955. Charles Eames was born in 1907 and dies in 1978, the Eames chair was named after the designer itself it took 80 years for prototype. Eames was best known as the designer responsible for many classic iconic designs of the 20th century, Eames was born in St Louis, Missouri and studied architecture at Washington University, he got married in 1941 and moved to California to set up a ground breaking design studio. The chair was design for exterior use however it became very popular as an office chair....   [tags: home decor, Designer, Charles Eames, Eames Chair, ] 465 words
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The Evolution Of Jet Engines - The Evolution of Jet Engines The jet engine is a complex propulsion device which draws in air by means of an intake, compresses it, heats it by means of an internal combustion engine, which when expelled it turns a turbine to produce thrust, resulting in a force sufficient enough to propell the aircraft in the opposite direction (Morgan 67). When the jet engine was thought of back in the 1920's the world never thought it would become a reality, but by 1941 the first successful jet flight was flown in England....   [tags: essays research papers] 626 words
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The Harley-Davidson V-Rod - The Harley-Davidson V-Rod Do you want to be the epitome of style and finesse and make all other motorcycle riders look incompetent. Of course you do and to do that you have to buy yourself a Harley- Davidson V-Rod. With 1200cc engine and 7000 rpm being pumped out who could refuse this machine just to make things better the bikes liquid cooled, fuel injected and has forged pistons this along with other features make this bike do a genuine 130mph rare for a Harley. The new V- twin puts the power into power train and finally the front forks stretch out at a 38°, a true cruising bike....   [tags: Papers] 356 words
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Ideas About Religion in Poetry - Ideas About Religion in Poetry Exploring the poems in cluster one I have discovered several references to God and human nature. Through the language displayed and emotions expressed I will now discuss various ideas about religion. The poem "Blessing" expresses the value of water as "the rush of fortune" and "silver crashes". It suggests the greatness of God since he provides water - "the voice of a kindly god". Water is seen to be a gift from God and the poets line, "roar of tongues", reminds us of this as it compares to the bible, "tongues of fire"....   [tags: Papers] 526 words
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Savannah Grassland - Savannah Grassland Introduction: · A savannah is hot, seasonally dry grassland with scattered trees. · This environment is intermediate between grassland and a forest. · Savannahs are located in the dry tropics and the subtropics, often bordering a rainforest. · Savannahs are located in Africa, Madagascar (an island off the East Coast of Africa), Australia, South America, India, and the Myanmar-Thailand region of Southeast Asia. Location: · Located between the latitudes of 5° and 15° north and south of the Equator....   [tags: Papers] 463 words
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Gego - Gego Gego moved on with her works: inventing, letting them grow and helping others, many others, to grow and expand their imagination which is what artwork is all about. Here she anchored her life, and accepted the need to find the meaning of life every day. According to the Chinese proverb: "Today is the future about which we were thinking yesterday." She began in many ways: founded a lamp and furniture manufacturing business, and prepared designs for architects. Finally, she produced work based on the adventure of the line in space....   [tags: Papers] 468 words
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Overcoming Pollution - Overcoming Pollution very efficiently transmitted through the generally stiff, metallic and therefore resonant structures. One common way of overcoming the considerable nuisance this can cause for the occupants is by absorbing the vibration and actually converting it to heat using viscoelastic polymer materials, typically based on polyurethanes or acrylics. Over the past 20 years, Swedish Acoustic Products -- Swedac -- has built a track record in overcoming noise and vibration problems using this basic technology....   [tags: Papers] 472 words
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Investigating Factors that Affect the Rate of Reaction - Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase....   [tags: Papers] 537 words
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An Investigation Into What Affects How Much Copper Is Deposited On A Pure Copper Cathode - An Investigation Into What Affects How Much Copper Is Deposited On A Pure Copper Cathode Plan Aim The aim of this investigation is to find out what effects the amount of copper deposited on a pure copper cathode. We already know that by passing an electric current through a copper sulphate solution the atoms at the anode dissolve while at the cathode positive ions are gathering and collect up. Variables Variables are what we can change in the experiment here are some of them: · We can change the amount of current passed through the electrodes....   [tags: Papers] 548 words
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Acid Mine Drainage - Acid Mine Drainage For hundreds, even thousands of years, human beings have mined for metals and stones, and with the advent of greater technology as well as greater needs, the demands for these resources continue to grow. While these resources benefit our lives in many ways, the effects of mining can be detrimental, and one such effect is the topic of this essay, acid mine drainage (A.M.D.). The causes of A.M.D. will be discussed, along with some of the physical and biological problems associated with it....   [tags: science]
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In this experiment I am going to investigate how different - In this experiment I am going to investigate how different concentrations of sucrose solution can alter the process of osmosis on a potato chip, and in what way it does this. Osmosis Aim: In this experiment I am going to investigate how different concentrations of sucrose solution can alter the process of osmosis on a potato chip, and in what way it does this. Prediction: I predict that due to osmosis and diffusion when there is a pure water solution the potato chip will swell as it absorbs the water to equalise....   [tags: Bilogy] 907 words
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Name a local corporation that proclaims it has implemented green - Name a local corporation that proclaims it has implemented green Name a local corporation that proclaims it has implemented green management policies. Describle what it has done and critically comment whether its green management policies are appropriate. Answer: KMB, is the largest bus operator in Hong Kong. It aims to provide efficient and comfortable bus service everyday. Then, environmental protection for KMB in Hong Kong is a must to do and it has implemented various measures aimed at both improving the performance of its buses and contributing to a cleaner environment....   [tags: Business and Management Studies] 1343 words
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