Investigate which material is most efficient for insulation.

INSULATION EFFICIANCY My Aim is to investigate which material is most efficient for insulation. I WILL NEED.... . 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. The materials will be attached around the side area of the can and held with an elastic band. To make it a fair test all materials will be of the same magnitude and only one elastic band will be used to hold the material. I will put the thermometer in the copper can. I will then place the amount of boiling water required, into the copper can immediately after the boiling of the kettle, once the thermometer and boiling water are within the can I will start my stop watch and record the temperature in the can every 10 seconds up until 100 seconds. I will then repeat this experiment twice in the same

  • Word count: 1191
  • Level: GCSE
  • Subject: Design & Technology
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I am going to study bowls that are used for playing sports such as ten-pin bowling, etc.

What is to be studied I am going to study bowls that are used for playing sports such as ten-pin bowling, etc. Why was this topic chosen This topic was chosen for a couple of reasons. First of all, at the beginning I was unsure, on what products, I was going to study, because of the large expansive range, of products that are available, on the current market today. My idea to choose bowls, came to me, when I was playing a game of ten-pin bowling, with a couple of friends, which made me remember, about the time, that I use to play crown green bowling. I believe that bowling is an important part of popular culture and a recognisable sport, by a variety of people. Bowls is an interesting subject to study, because people of all ages, play both types of bowling, and it does not matter, if they are young or old, and it is fun to play, as well. What do I hope to learn by completing the study By completing this study, I hope to learn more about bowls, how bowls are made, and what materials that bowl are made out of. I also hope to learn about how bowling associations, were set-up and they operate, in the bowling society today. I am also hoping to learn, about the manufacturing process, which is used to produce the bowls from, and how they are tested. What do I hope the reader will learn from this study I hope that the reader will learn from this study, but to also find

  • Word count: 1463
  • Level: GCSE
  • Subject: Design & Technology
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Can we use a better Polymer

Can we use a better polymer? A polymer is a term used to describe large molecules consisting of repeating structural units, or monomers. The word derives from the Greek words poly (many) and meros (parts) - (many parts). There are two types of polymers - natural and synthetic. Examples of natural polymers include:- DNA, skin, hair and keratin. Examples of synthetic polymers include:- plastic, nylon, polyethylene and polystyrene. The Chain Structure of a Polymer Synthetic polymers are made by reacting together small molecules called monomers. When the monomers join together they form a polymer. We make polythene by joining together molecules of ethene. The main properties for a material are: * Strong * Tough * Flexible * Tension * Soft * Density You could test a material for a specific property in many ways, for a carrier bag you could put in various weights to see how much the bag can hold without the handles snapping or the bottom of the bag falling through. You can modify the properties of a material by adding a chemical. For example, if you want to create a super-strong carrier bag you would have to add the correct chemical to the chemicals which are already being used to create the material. There are some ethical issues to do with using plastic and include: * Expensive * Non-Biodegradable There are also some ethical issues to do with using synthetic

  • Word count: 621
  • Level: GCSE
  • Subject: Design & Technology
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Find out which is the most effective insulating material out of a range of different materials.

G.C.S.E science coursework Coursework: Insulator Aim: My aim is to find out which is the most effective insulating material out of a range of different materials. Introduction The choice of an insulation material is usually made depending on the application. Polyethylene and polystyrene are usually used in high-frequency applications. Insulators must also be selected according to the maximum temperature they will encounter. I.E. Teflon is used in the high-temperature range of 175° to 230° C. Other materials may need to be used in awkward mechanical or chemical conditions. Nylon has an excellent abrasion resistance, also neoprene, silicone rubber, epoxy polyesters, and polyurethane's usually provide protection against chemicals and moisture. Thermal insulating materials are used to reduce the flow of heat between hot and cold regions. The sheathing often placed around steam and hot-water pipes, for instance, reduces heat loss to the surroundings, and insulation placed in the walls of a refrigerator reduces heat flow into the unit and permits it to stay cold. Thermal insulation may have to for fill one or more of three functions: . To reduce thermal conduction in the material, in which heat is transferred by electrons. 2. To reduce thermal convection currents, which can be set up in air- or liquid-filled spaces 3. To reduce radiation heats transfer, where

  • Word count: 2360
  • Level: GCSE
  • Subject: Design & Technology
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A comparison between the Egyptian architecture, with that of the Olmecs, an early civilization in Central America

A comparison between the Egyptian architecture, with that of the Olmecs, an early civilization in Central America By Jimmy Jackson Ancient History Assignment "Egyptian architecture is more advanced than the architecture of the Olmecs" For centuries, the dedicated craftsmen of Egypt have been developing a range of techniques and skills, which have been passed down from generation to generation. The result is that our fair kingdom now boasts some of the most elaborate and sophisticated examples of advanced architecture in the world as we know it. We have fine pottery; furniture embellished with delicate indentations; enormous monuments representing celestial beings; hypostyle halls; pylons, courtyards, two-dimensional carvings depicting myths and pictorial impressions of the afterlife; intrinsically decorated sculptures; and a myriad of beautified tools and elaborately designed utensils for both ornamental and practical purposes. However, our most attractive creation, in my opinion is our majestic, beautifully designed, jewel-encrusted pyramids. The epitome of Egyptian architecture, they represent everything we perceive as culturally significant. Religion, family, education, deities, science, art, music, fashion, record-keeping, patriotism and progress - its all preserved for eternity inside steadfast layers of cemented materials. For thousands of years we have perceived

  • Word count: 1879
  • Level: GCSE
  • Subject: Design & Technology
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Evaluation I created jewelry rings with two different methods stamping and etching.

Evaluation I created jewelry rings with two different methods -stamping and etching. Investigation: For my DT investigation on jewelry, I think that I completed both tasks fully. In task 1, I used several different sources, including books and websites. Many of the designs I chose were under the categories that I picked. I think that I did very well on this task. In task 2, I chose Egyptian jewelry. It was fairly easy to search the information and I answered all the questions. However, if I were to do this again, I would elaborate more on the Egyptian symbols (task 2). Also, I would add in more pictures, which will help the reader to understand even better. Design: Stamped Ring: The design of my stamped ring was not designed and I thought of it on the spot. It was stamped with rectangles along the top edge, triangles along the bottom edge and a circle in between every other triangle. I chose the particular shapes because it made a scenery view. The rectangles are the clouds, the triangles are the mountains and the circles are the suns. The sun is in the middle because it is like sunrise or sunset. I really liked this design because it looked avant-garde and ancient in ways. I also gave a little thought into it. Etched Ring: I was quite proud of my designs because they had a variety of different symbols and I thought they were creative. I used different methods,

  • Word count: 1337
  • Level: GCSE
  • Subject: Design & Technology
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How is iron and steel made?

Report on Geography Video How is iron and steel made? Iron is made using a blast furnace see below: . The three raw materials needed to make iron are added into the top of the furnace. These are: i) Iron ore - found in rocks. This is a gross raw material as it looses weight on being manufactured. ii) Coal - Dug from under the ground in from either "Adit" mines or "Deep shaft" mines. This is needed to heat the furnace. iii) Limestone - Dug from pits similar to the iron ore, this is needed to separate the iron ore from the rocks. 2. Hot air is then added into the furnace 3. The waste material called slag is ejected from the sides of the furnace (this can be used later as a base for roads as it is very hard). 4. Molten iron pours out of the blast furnace into ingots of iron called pigs as they look like piglets suckling on their mother! At this stage this "pig iron" is very brittle and would break if dropped Some of the iron is now moulded into ingots and sold, but the majority is either cast into other things or turned into steel. Molten iron is fed into a machine called a "converter" (pictured left). Then with a pipe called a lance oxygen is blown through the iron to create steel. Most of this operation is controlled in a control room. This steel is then ready to be moulded in the rolling mill. (Pictured left) Then the steel can be sold. Stage 1 This is the

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  • Level: GCSE
  • Subject: Design & Technology
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Investigate and evaluate the differences and similarities in the key features in planning the designs of two different types of laboratory or other scientific workplaces.

I have been asked to investigate and evaluate the differences and similarities in the key features in planning the designs of two different types of laboratory or other scientific workplaces. The assignment will express my ideas and evaluation of best practice to design a laboratory, which can be used for applied science and research. For the purpose of my paper I have assessed two laboratories, which have been designed for similar purposes. The laboratories have been used for the education of higher and secondary education. The laboratories described are NEW College, Redditch (Higher Education) and St Benedict's High School, Alcester (11 - 16 years of age). The laboratories are both different because of their contrasting roles. The laboratory at St Benedict's Alcester is specifically designed for biology while the laboratory at NEW College Redditch, located in the Peakman Building, is used for applied science. In the design of the laboratories, approval by the appropriate planning authority, namely Redditch Borough Council for NEW College and Stratford upon Avon District Council for St Benedict's High School, has been obtained. Both Local authorities sanctioned building regulation approval at the time when the applications were made for approvals, following consultation with the appropriate fire authority (Hereford and Worcestershire and Warwickshire Fire and Rescue). It

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  • Level: GCSE
  • Subject: Design & Technology
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Where is toughened glass used?

Storyboard Where is toughened glass used? Toughened glass can have various uses, mainly for when all the properties of normal glass are required, but also the stronger properties that toughened glass has. It is used in situations that glass would just not be strong enough for, such as in frameless shower screens or office partitions inside buildings, or on the exterior of buildings where large spans of glass are required, such as office buildings where the exterior is mainly glass. It is also used a great deal in all forms of transport for windows and windscreens, as regular glass could not stand up to the conditions that many vehicles face. The main use of toughened glass being focussed focused on today is in car windscreens. Toughened glass must be used for these, and in most countries there are regulations in place regarding the thickness and strength to ensure that safety is always at a high standard. It is necessary to use toughened glass in this situation due to the fact that regular glass could prove very dangerous to the occupants of the car if it were to break. When normal glass breaks in a car accident, it would break into large, jagged pieces with very sharp edges, with many smaller pieces which could fly backwards into the car at a high speed. This could cause very severe injuries to any occupants of the car and can greatly increase the severity of any

  • Word count: 1210
  • Level: GCSE
  • Subject: Design & Technology
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Investigation to find the best material to cover a newborn sheep to reduce the heat loss and keep it warm

James Murray 0-3 23rd April 2001 Investigation to find the best material to cover a newborn sheep to reduce the heat loss and keep it warm Aim The purpose of this experiment is to determine the best material to cover a new-born lamb. Many different materials will be used and by the end of this experiment we shall have determined the best heat insulating material for this application. Apparatus Thermometer Kettle Test tube rack Stopwatch Measuring cylinder Elastic bands Test materials: Cotton wool Bubble wrap Cotton Paper towel Foil Diagrams Previous experiment I initially conducted this experiment but with only two of the materials so I have an idea of what will happen and the experiment can also help me plan for this one. I covered two test tubes in 12cm by 12cm material (one in cotton wool, one in bubble wrap) and added 10ml of boiling water. I waited until the temperature of the water reached 60? Celsius and then began reading the temperature for 10 minutes. I then made a table of my results, which is shown below. Time (m) Bubble wrap (?C) Cotton wool (?C) 54 54 2 52 53 3 51 51 4 49 50 5 48 49 6 47 49 7 45 47 8 44 45 9 43 45 0 41 44 After completing this experiment I have decided to change a few things and add others to get a better and wider range of results. I used a wider range of materials and tested them three

  • Word count: 2061
  • Level: GCSE
  • Subject: Design & Technology
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