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Free research essays on topics related to: surface area

23 results found, view free essays on page:

  • Liquid Nitrogen Surface Area
    1,858 words
    Introduction Background and Theory. Experimental Procedure. Results and Discussion Conclusions and Recommendations Nomenclature... References B. Equipment Diagram... The hydrogenolysis of ethane on a nickel on kieselguhr catalyst has only been conducted using a cylindrical pellet shaped catalyst of unknown surface area. We used a powdered version of this catalyst and compared its performance with that of the pellet catalyst. This comparison was conducted using one gram of catalyst in each reacto...
    Free research essays on topics related to: surface area, liquid nitrogen, first day, 1 g, catalyst
  • Endoplasmic Reticulum Organic Molecules
    1,136 words
    ... m is used to breakdown glycogen to glucose. The endoplasmic reticulum is versatile and grows and shrinks according to the cell's activities. Chloroplasts which are found in plant cells are used in the process of photosynthesis. They fall into the category of plastids but they are differentiated in that they contain chlorophyll. These organelles produce chemical reactions from the energy that the sun gives them. The Golgi complex's structure is made up of many flattened membranes sacs that ar...
    Free research essays on topics related to: endoplasmic reticulum, cell membranes, plant cells, organic molecules, chemical reactions
  • Cooling Rate Of Coffee
    1,679 words
    Experiments to Determine the Cooling Rate of Coffee, when Milk should be Added and what Container should be Used The aim of the first experiment was to find out and record the cooling rate of coffee under three different conditions and thus showing when milk should be added assuming you have a phone call. The three different conditions were chosen because these were the most likely situations encounter by someone who is making a cup of coffee. We used Tain instruments to accurately calculate the...
    Free research essays on topics related to: surface area, hot water, phone call, heat loss, cup of coffee
  • Australian And Indonesian Economies
    948 words
    What are the major points of contrast between the Australian and Indonesian Economies? The major points of contrast between the Australian and Indonesian economies are: GDP, GDP growth, inflation, unemployment and quality of life. In this essay I will also discuss the quality of the environment in each. There is also a large contrast between the land area and population of each nation. The World Bank classifies Australia as a developed economy. It is a mixed market economy because the price mech...
    Free research essays on topics related to: gdp per capita, political instability, economic and political, quality of life, currency crisis
  • Carbon Dioxide Surface Area
    3,396 words
    One of the most little known species of ants in North America is the leaf-cutter ant. This is mainly because it lives in tropical environments and it is not aggressive to animals or humans if not disturbed. The leaf cutting ant is a social insect. Alone the ant is virtually helpless but with the colony it can be a thing feared by animal and human alike. The leaf-cutting ants have a very important role in the tropical forest. They create and manipulate the environment around them. They also can d...
    Free research essays on topics related to: surface area, one set, 5 mm, carbon dioxide, north america
  • Air Resistance Tyres And Friction
    1,870 words
    Dragsters use a combination of large wide tyres or the rear and small narrow tyres on the front this combination is used for the following reasons: The front wheels: The front wheels are very narrow. This is so a minimum of air resistance or drag affects the dragster with lower drag better acceleration an in turn a better top speed can be achieved all leading to a better pass (race time). Now lets try to understand the concept of air resistance and drag. A basic example is placing your hand out ...
    Free research essays on topics related to: five hundred, air resistance, surface area, greatest amount, chemical change
  • Play An Important Role Five Hundred
    1,837 words
    ... sly mentioned. Also low tyre pressures below 20 psi (pounds per square inch) can be run to squat the tyre down onto the road and form a larger footprint. However with lower tyre pressures there is less force holding the tyre in shape. When under extreme force in the horizontal plane (such as in cornering) the rubber will elastically deform and cause heat to be generated. This heat is advantageous in that it causes a physical change in the rubber and it becomes soft and sticky. This translate...
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  • Surface Area J S
    1,313 words
    ... t an advantage because it doesnt need to wait for a male to fertilize a female. The amount of time it takes for seed dispersal to occur is greatly reduced. All of these factors combine to make the poplar a successful plant that can adapt to almost every habitat. The poplar is very light dependent; it needs lots of light for its leaves to achieve enough photosynthesis so growth can occur properly. Poplar roots are shallow, especially on wet soils. Most poplars may have extensions called root ...
    Free research essays on topics related to: nutrients, soil, soils, j s, surface area
  • White Blood Cells Endoplasmic Reticulum
    1,733 words
    The studies of Robert Hooke 1665 into a plant material would allow the determination of a pore like regular structure surrounded by a wall of which he called cells this in itself unbeknownst to him, was the discovery of the fundamental unit of all living things. In 1838 a botanist called Schleiden derived the theory The basic unit of structure and function of all living organisms is the cell. Over 150 years later this can be regarded as one of the most familiar and important facts within the bio...
    Free research essays on topics related to: hydrogen peroxide, endoplasmic reticulum, golgi apparatus, electron microscope, white blood cells
  • Tae Kwon Mcgraw Hill
    1,600 words
    How does a roundhouse kick work? Tae Kwon Do is a Korean, unarmed martial art and is best known for its kicks (Park, 2001). The roundhouse kick is a turning kick and happens to be the most commonly used kick during competition (Lee, 1996). For this reason, the roundhouse kick will be analyzed in reference to sparring competition. The roundhouse kick, a multi planar skill, starts with the kicking leg traveling in an arc towards the front with the knee in a chambered position (Pearson, 1997). The ...
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  • Sir Isaac Newton Infinite Number
    1,809 words
    Calculus, being a difficult subject, therefore requires much more than the intuition and genius of one man. It took the work and ideas of many great men to establish the advanced concepts now known as calculus. Of the many mathematicians involved in the discovery of calculus, Gottfried Wilhelm von Leibniz and Sir Isaac Newton were the most important. Together, they established the basic principles of calculus, and, with the help of other mathematicians, it was refined using the concept of the li...
    Free research essays on topics related to: sir isaac newton, b 2, surface area, infinite number, n 1
  • Hydrogen Peroxide Degrees Celsius
    539 words
    Catalase Which Is Found In The Liver' Introduction: Enzymes are biological catalysts. They speed up the chemical reactions which go on inside living things. Without them the reactions would be so slow that life would grind to a halt. Enzymes work by when a substrate molecule bumps into a molecule of the right enzyme, it fits into a depression on the surface of the enzyme molecule. This depression is called the active site. The reaction then takes place and the molecules of product leave the acti...
    Free research essays on topics related to: active site, degrees celsius, hydrogen peroxide, test tube, surface area
  • Polar Ice Caps Carbon Dioxide
    2,528 words
    Colony on Mars The human race has always explored the unknown. At the dawn of the humanity new lands were the object of exploration. People stimulated by their curiosity and care for the future generations left their overcrowded or exhausted lands and went to unknown virgin territories in search of fertile soil, economic and political independence and secure life for their children. The technological progress of the twentieth century has changed life of the mankind to such an extent, that in ear...
    Free research essays on topics related to: polar ice caps, dust storms, carbon dioxide, olympus mons, dust particles
  • Epithelial Cells Blood Flow
    571 words
    Not all animals have lungs. Many animals live in environments where lungs would be efficient enough for survival. Gills are another type of respiratory system, which are very efficient at removing oxygen from water: there is only 1 / 20 the amount of oxygen present in water as in the same volume of air. Gills greatly increase the surface area for gas exchange and they occur in a variety of animal groups including arthropods (including some terrestrial crustaceans), annelids, fish, and amphibians...
    Free research essays on topics related to: oxygen, blood flow, epithelial cells, flow, surface area
  • H 2 O Amino Acids
    1,852 words
    Functions Of The Digestive And Kidney Systems Functions Of The Digestive And Kidney Systems Of The Body 1. You eat a hot dog, leave the bun, describe the physiological response to the increased food in your stomach. Food inters the stomach and it increases the pH and H+ decreases thus the stomach get more basic. The stomach walls are also stretched. Chemoreceptors and stretch receptors detect the change in pH and the stretch on the walls. Nerve impulses travel to the sub mucosal plexus this stim...
    Free research essays on topics related to: amino acids, hot dog, fatty acids, small intestine, h 2 o
  • Cable Stayed Bridges Minimal Surface Area Bridge
    530 words
    Bridges have Bridges REASEARCH PAPER Bridges have been around sense the beginning of time. The Ancient Roman engineers used two significant innovations, the cofferdam and cement. The cofferdam is when the put wooden spikes in to the bottom of the river then used watertight clay over the spikes to make a bridge. Now today there are more efficient ways to make a bridge then just out of cement and clay. There are Suspension Bridges, Arch Bridges, Covered Bridges and many more. Suspension bridges ha...
    Free research essays on topics related to: bridge, surface area, suspension, bridges, span
  • 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...
    Free research essays on topics related to: bunsen burner, hydrochloric acid, measuring cylinder, move faster, distilled water
  • Rate Of Reaction Calcium Carbonate
    2,367 words
    Investigation Into The Relationship Between Temperature Of Investigation Into The Relationship Between Temperature Of Acid And The Rate Of Reaction In The Reaction Of Caco 3 And Hcl Background Information The speed at which reactants are converted into products during a reaction is referred to as its rate. Usually in a reaction, the amount of the product of the reaction is measured to work out the rate of the reaction. In this reaction, the rate will be calculated by the equation: Rate = 1 Time....
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  • Central Nervous System Divided Into Three
    1,940 words
    The Brain Covering All Parts- INTRODUCTION The human body is divided into many different parts called organs. All of the parts are controlled by an organ called the brain, which is located in the head. The brain weighs about 2. 75 pounds, and has a whitish-pink appearance. The brain is made up of many cells, and is the control centre of the body. The brain flashes messages out to all the other parts of the body. The messages travel in very fine threads called nerves. The nerves and the brain mak...
    Free research essays on topics related to: spinal cord, cerebrospinal fluid, cerebral cortex, central nervous system, divided into three
  • Hydrochloric Acid Surface Area
    562 words
    Rates Of Reaction Between Magnesium And Hydrochloric Rates Of Reaction Between Magnesium And Hydrochloric Acid When Using Different Concentrations Rates of reaction between magnesium and hydrochloric acid when using different concentrations One way of making the reaction between magnesium and hydrochloric acid more effective or less effective would be to use higher or lower concentrations of either the magnesium or hydrochloric acid. Temperature and surface area can also make a reaction faster o...
    Free research essays on topics related to: high concentration, surface area, magnesium, hydrochloric acid, low concentration

23 results found, view free essays on page:

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