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Osmosis Experiment - Background Knowledge: Osmosis definition: Diffusion of water molecules through a semi permeable membrane from a higher concentration to a lower concentration until the concentration on both sides is equal. Osmosis in animal cells: The cell membrane is the partially permeable membrane in animal cells. If the cells were placed in distilled water they gain water, swell and burst. This is known as haemolysis. Osmosis in plant cells: The cellulose cell wall of plant cells is fully permeable. Therefore it’s the cell membrane of a plant cell which acts as the semi-permeable membrane, deciding what gets into and out of the cell....   [tags: Science Experiment] 582 words
(1.7 pages)
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The Harcourt Essen Experiment - The Harcourt Essen Experiment The aim of this investigation is to: 1) find the rate equation for the reaction between hydrogen peroxide, potassium iodide and sulphuric acid by using the iodine stop clock method and plotting graphs of 1/time against concentration for each variable. Then to find the activation energy by carrying out the experiment at different temperatures using constant amounts of each reactant and then by plotting a graph of in 1/t against I/T, 3) to deduce as much information about the mechanism as possible from the rate equation....   [tags: Chemistry, Science, Experiment] 1470 words
(4.2 pages)
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cDNA Experiment Results - Materials and Methods: Subjects The cDNA was produced by reverse transcriptase from total RNA by using superscript II (Invitrogen). The cDNA were from the lung which was obtained commercially from Ambion, HASM which was extracted in house and HBEC which was obtained commercially from Lonza. Primer Design Oligonucleotide primers were designed by obtaining the reference sequences for uPA, PAI-1 and PAI-2 from National Centre for Biotechnology Information (NCBI). The sequences were checked using NEBcutter (V2.0) to identify the common restriction enzymes sites that are not included in the sequences to be able to clone into pcDNA3....   [tags: cDNA Experiment Results ] 1285 words
(3.7 pages)
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An Experiment to Determine Whether People Are Influenced by Leading Questions - An Experiment to Determine Whether People Are Influenced by Leading Questions Abstract The purpose of the experiment was to determine whether people are influenced by leading questions. This experiment is a replication of an experiment conducted by Loftus and Palmer in 1974. In the experiment the independent variable was the verb used (contact, smash). The dependant variable was the speed estimated by the participants when recalling the picture of the crash from their memory. The results gave evidence that specific words could influence the retrieval of a memory....   [tags: Psychological Experiment]
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2361 words
(6.7 pages)
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AN EXPERIMENT TO FIND THE ACOUSTIC IMPEDANCE OF PARAFFIN AND WATER - An experiment to find the acoustic impedance of paraffin and water Abstract The speed of sound through paraffin and water was measured, and came close to the generally expected value. The speed in was calculated as 1458.36±16.2ms^(-1) in water and 1212±23.7ms^(-1) in paraffin. Then the density of these two liquids was measured, and combined with the speed of sound to find the acoustic impedance. . The acoustic impedance of water was 1575±29kgm^(-2) s^(-1) and the acoustic impedance of paraffin was 1066.6±32kgm^(-2) s^(-1) ....   [tags: Experiment Analysis]
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1905 words
(5.4 pages)
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Research Experiment to Determine the Speed of Sound - Abstract/Introduction: Sound is the sensation that our brain interprets when vibrations carried to our ears stimulate the auditory nerves. It is produced by the compression and rarefaction of matter. The speed of sound depends on the properties of the medium such as bulk modulus, density and the temperature though which it travels. It does not depend on the source of the sound. Sound travels faster in air which is less dense and in air with a higher temperature. Hence, more density and heat = faster speed of sound....   [tags: physics, Physics Experiment] 1972 words
(5.6 pages)
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Chemistry Report: Experiment on Rates of Reaction - Rates of Reaction CaCO3 + 2HCl → CaCl2 + H2O + CO2 In this report I will be suggesting my predictions on what the rates of reaction will be and what the actual rates of reaction are. I will do this by collecting data from experiments and I will show this by putting data into a table. The main aim of my experiment is to find the rate of reaction over time taken and the rate of reaction when the concentration of hydrochloric acid increases or decreases. I will try to make my experiment as accurate as I can....   [tags: chemistry experiment, lab report] 3714 words
(10.6 pages)
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Sodium Thiosulphate Reaction Time Experiment - Introduction: In the investigation I am going to see how long it takes for sodium thiosulphate to react with hydrochloric acid, the sodium thiosulphate will be diluted with water, I will do this by having 60 ml sodium thiosulphate and 40 ml water but each time I will change the amount of sodium thiosulphate and water but they will both add up to equal 100ml, I will know when the reaction has taken place because the beaker with the chemicals in will go cloudy, we will put the beaker on a piece of paper with a x on it....   [tags: chemistry, chemistry experiment] 912 words
(2.6 pages)
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The Ethics of the Stanford Prison Experiment - When put into the position of complete authority over others people will show their true colors. I think that most people would like to think that they would be fair, ethical superiors. I know I would, but learning about the Stanford Prison Experiment has made me question what would really happen if I was there. Would I be the submissive prisoner, the sadistic guard, or would I stay true to myself. As Phillip Zimbardo gave the guards their whistles and billy clubs they drastically changed without even realizing it....   [tags: Stanford Prison Experiment, psychology, criminal j] 923 words
(2.6 pages)
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The Rebirth of Youth in "Dr. Heidgger's Experiment" - Life is short. Death is forever. Time is of the essence. When the performances of our lives upon earth have reached it final act, human nature forces us to reflect on the fragility of not only the human body, but also the fragility of the human psyche. We are all just visiting this life, just passersby seeking to find our way through the blizzard of existence. Literary works swoop readers to distant lands and drop them in life defining situations; Works of art that assault the eyes and force the mind to become one with the painting are just two of the many ways humans have attempted to stay connected to life after death....   [tags: Dr. Heidgger's Experiment, Nathaniel Hawthorne,]
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1017 words
(2.9 pages)
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Verbal Reaction Times Experiment - Verbal Reaction Times Experiment The research paper refers to tables that are NOT included with this paper. This report aimed to replicate Stroop's (1935) experiment. Using the repeated measures design and a sample of 20 students, differences in verbal reaction times on two tests were observed. The one-tailed hypothesis predicted that it would take longer to say words in the Cc, this is the conflicting condition where the colour of the word differs from the colour that the word describes....   [tags: Stroop 1935 experiment]
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2635 words
(7.5 pages)
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The Forbidden Experiment by Roger Shattuck - The Forbidden Experiment by Roger Shattuck It is one of the oldest unanswered questions in all of science. Though slightly more grounded in empirical science than the likes of "Where did we come from?" or "Why are we here?" the impossible Nature/Nurture dichotomy has tormented truth-bound scientists for years. Recent advances in genetics have brought forward new possibilities for those who would study the pure effects of environmental variables on animals, but we are far from allowing ourselves to manipulate other human beings in such ways for the sake of collecting data....   [tags: Forbidden Experiment Roger Shattuck Essays]
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1421 words
(4.1 pages)
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Bad Blood: The Tuskegee Syphilis Experiment by James H. Jones - Bad Blood: The Tuskegee Syphilis Experiment by James H. Jones Introduction The book BAD BLOOD: THE TUSKEGEE SYPHILIS EXPERIMENT by James H. Jones was a very powerful compilation of years of astounding research, numerous interviews, and some very interesting positions on the ethical and moral issues associated with the study of human beings under the Public Health Service (PHS). "The Tuskegee study had nothing to do with treatment … it was a nontherapeutic experiment, aimed at compiling data on the effects of the spontaneous evolution of syphilis in black males" (Jones pg....   [tags: Medical Experiment] 1728 words
(4.9 pages)
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The Experiment - The Experiment The Experiment was written based off the moral war between whether or no cloning is right. It involves three main people: Jude, Skyler and Tizzie. Jude is a newspaper reporter and has been dating Tizzie for quite awhile. Tizzie is a doctor who studies twins and the different types. Jude was doing a newspaper article and that was how he met Tizzie. He had to get information for the article and was told that Tizzie was the person to talk to when it came to twins. She happened to be a highly recognized doctor in that field....   [tags: essays research papers] 1098 words
(3.1 pages)
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The Stroop Effect Experiment - The Stroop experiment can be traced back as far as the nineteen century around the time of some particular works of Cattell and Wundt. The experiment was first written about in 1929 in German. The experiment was name after John Ridley Stroop after he had written the article “Studies of interference in serial verbal reactions,” which was published in 1935.there have been over 700 replications of this experiment The experiment is a demonstration of reaction time of a task . The Stroop experiment employs two basic processes of cognition; attention (“the concentration of mental effort on sensory or mental events”) and automaticity (“a cognitive process that does not require conscious thought as a result of existing cognitive structures or highly practiced tasks.”)....   [tags: Stroop Effect, Experiments, science, ]
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763 words
(2.2 pages)
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Caffeine Experiment - Introduction: Caffeine is one of man’s most successful discoveries dating back to the 13th century. Although its origins are not completely clear, we see the impacts of its use down to the 21st century. From local cafes and restaurants to school and fast food chains, the evidence is relative that coffee is truly everywhere in our society. One of coffees many uses was that it had the ability to make its consumers feel more ready to start the day. However, does caffeine really affect our moods and emotions....   [tags: Research Analysis] 1107 words
(3.2 pages)
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Mentos Experiment - MENTOS + SODA = . Problem: Which brand of soda tested spews the most liquid when three Mentos are doped into a 2-liter of each brand. We know that the reaction between Mentos and soda is an explosion, but what we are trying to figure out is which brand causes the biggest reaction. Hypothesis: If three Mentos are dropped into a 2-liter of Diet Coke, Diet 7-Up, and Dr Thunder, then the Diet Coke will have the largest reaction to the Mentos. Materials: 1 pkg. Mint Mentos candies 2-liter Diet Coke 2-liter Diet 7-Up 2-liter Dr....   [tags: Chemistry] 604 words
(1.7 pages)
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A Racism Experiment - Racism, I have heard this term used all my life. Growing up in the South I would hear things from adults that were supposed to guide and build me into a respectable adult. Instead I heard that white was right, and if someone wasn’t white then they were treated differently. Racism is usually defined as a race issue; it is also linked to social standing, income and religion. The fight against racism is ongoing. There are many agencies that combat the violence and hate that is associated with racism....   [tags: racism, prejudice, racial profiling] 946 words
(2.7 pages)
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Psychology Experiment - I registered to take psychology for a different reason, but I never thought it could aid in the improvement certain skills of mine until I was asked to apply what I have learned to my lifestyle. Upon finding out I had to apply a learning principle of psychology to my life, I was not sure of which aspect I could apply to and benefit greatly from it. I pondered greatly about diverse aspects involving sports, fitness, eating habits, socializing and finally study habits. It was then that I realized upon comparing my study habits back when I was in Ghana to my current state, it has gotten extremely awful....   [tags: Psychology] 660 words
(1.9 pages)
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Stanley Milgrim's Obedience to Authority Experiment - The experiment performed by Stanley Milgrim at Yale University was both fascinating and thought provoking. Milgrim’s famous experiment explored “Obedience to authority.” In his experiment Milgrim explained to his students what was going to happen. He told his students that they would be the “teacher” who was going to administer a volunteered “student “a word-pairing test. Milgrim told them for every incorrect answer the “student” gave they would give a shock to the “student”. Each shock would increase in voltage after every incorrect answer....   [tags: Stanley Milgrim, Obedience to Authority, Experimen] 765 words
(2.2 pages)
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Osmosis Experiment - Osmosis Experiment Planning Aim: The main subject that I will be planning to investigate is the effects of a concentrated sucrose solution on potato cells on the basis of the Osmosis theory. Background knowledge: The plant cell and its structure To understand osmosis in detail I will need to explain the plant cell (which is the cell included in the osmosis experiment) and its cell membrane. Below I have a diagram of a plant cell: [IMAGE] Osmosis is about the movement of particles from a higher concentrated solution to a lower concentrated solution to create an ethical balance via a partially or semi permeable cell membrane....   [tags: Papers] 1352 words
(3.9 pages)
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Word Experiment - Word Experiment The experiment started by making up between 1-6 word lists. To make the experiment easy to understand ill use 2 word lists. On one of the word lists I put a list of random words which are in different categories muddled up. For example: Rabbit and horse are both animals and shoes and trousers are both types of clothing. Now then you muddle those words up. You need about 24 words because there are 6 categories with four words in each, 6 x 4 =24....   [tags: Papers] 1312 words
(3.7 pages)
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Osmosis Experiment - Osmosis Experiment Planning Introduction Osmosis is the passage of water molecules from a weaker solution into a stronger solution, through a partially permeable membrane. In this case, the tiny holes in the membrane of the potatoes will allow the water molecules to pass through in and out of the solution and the potato, depending on the concentration gradient of the two substances. So in this case, when the water concentration is lower in the tissue, the water will go inside the tissue of the potato, and the potato will grow in length, and if there is very little difference in the two water concentrations, there shouldn't be such a big change in length....   [tags: Papers] 1643 words
(4.7 pages)
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Gravity Experiment - Gravity Experiment My physics coursework is an experiment with gravity. The experiment is done by creating a parachute with a plastic bag. The parachute has a given area and is usually square shaped. This means that the area is easily calculated. There are lengths of string attached to the chute which hold a ball of play dough at the bottom. [IMAGE] To do the experiment we have a choice of either keeping the mass of the play dough the same and keep changing the area of the chute, or we could keep the area of the chute the same and change the mass of the play dough each time....   [tags: Papers] 670 words
(1.9 pages)
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Vision Experiment - Vision Experiment Key factors: Brightness of the room will remain the same; letter sizes will change throughout the experiment. Glasses will not be worn. Method: 1.Read sheet at one metre away. Record result based upon how difficult your partner thought it was for you. 2.Read sheet at two metres away. Record result based upon how difficult your partner thought it was for you. 3.Read sheet at three metres away....   [tags: Papers] 382 words
(1.1 pages)
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Psychology Experiment - n hypothesis of the experiment is that the group containing four members will perform better than the group containing two members. This is the foundation from which we have conducted our experiment. The research our experiment was founded on was that carried out by Taylor and Faust (1952). They carried out an experiment on 105 student’s, which was designed in the method of the game ‘twenty questions’. The students were split into teams of one member, two members and four members. They were then told that the experimenter would keep an object in mind whether it is animal vegetable or mineral was also stated, and they were then allowed 20 questions and guesses to reveal the identity of the object....   [tags: essays research papers] 684 words
(2 pages)
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Lab Experiment - Lab Experiment 12 participants locked in a lab for 13 weeks, being set nerve-testing challenges, having their food supply limited, not being aloud to sleep, leading to physical violence verbal abuse and sex. If this was conducted under the front of a psychology experiment uproar would occur concerning its ethical issues, however under the front of a television game show these ethical and moral issues don't arise. Surely it is just as psychologically damaging to its participants as a lab experiment even with its glamorized appearance and hefty prize money....   [tags: Papers] 884 words
(2.5 pages)
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Chemistry Experiment - Chemistry Experiment How does the change in the electric current used in the electrolysis of copper sulphate solution affect the mass of copper deposited on the copper electrodes. Aim --- The aim of this experiment is to find out whether the mass of copper deposited on copper electrodes during the electrolysis of copper sulphate solution changes when the current used to electrolyse the solution is increased. Hypothesis ---------- I predict that if the current used to electrolyse the copper sulphate solution is increased, then the mass of copper deposited on the copper cathode will increase....   [tags: Papers] 2189 words
(6.3 pages)
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Osmosis Experiment - Osmosis Experiment Aim: The aim of this experiment is to show how osmosis works in a plant cell. Plan: Method The ways we will do this experiment is firstly by getting a beaker and put a 100ml of water in it, then get a visking tube and put it in the beaker, so we don't block the holes with natural grease on our hands. After, we will get another beaker and pour some 1% sugar solution in it. When we have done this, we get one end of the visking tube and 'ruffle' it, then we get some string and one person will tie the end of the tube, while the other person hold it....   [tags: Papers] 803 words
(2.3 pages)
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Chemistry Experiment - Chemistry Experiment An investigation to find out how the rate of the reaction of hydrochloric acid and sodium thiosulphate solution is affected by the concentration of the sodium thiosulphate. I am going to investigate the effect of varying the concentration of sodium thiosulphate solution in a reaction with hydrochloric acid. The theory behind this experiment is that 'increasing the concentration can increase the rate of the reaction by increasing the rate of molecular collisions.' [IMAGE]Sodium Thiosulphate + hydrogen acid sodium chloride + sulphur +sulphur dioxide + water Or [IMAGE]Na SO (aq) +2HCL (aq) 2NaCL (aq) + SO (I) + SO (g) Plan ==== Prediction ---------- I predict that the greater the concentration of sodium thiosulphate solution the faster the chemical reaction will take place....   [tags: Papers] 957 words
(2.7 pages)
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Biology Experiment - Biology Experiment Hypothesis I predict that the potatoes in the solution with high sugar concentration will increase in mass the most, the potatoes in the water with no sugar will lose the most mass. Osmosis is the movement of water from a high concentration to a low concentration across a particularly permeable membrane. The water can move between the potato and the solution but the sugar can’t because the molecules are too big to pass through the membrane. The water will move between the solution and the potato....   [tags: Papers] 1475 words
(4.2 pages)
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Osmosis Experiment - Osmosis Experiment Experiment to investigate how equal masses of potato are effected in different concentrations of 1molar sucrose soloution. Aim: To investigate if osmosis occurs in potatoes, and if so, how it affects potatos of equal mass (2.5g) in different molar solutions of sucrose and water. Apparatus: -Cutting tile which will be used to cut the potato on. -Knife which will be used to peel the potato with and to cut to correct mass....   [tags: Papers] 2503 words
(7.2 pages)
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The Milgram Experiment - The Milgram Experiment Stanley Milgram, an American social psychologist, carried out an experiment in the United States in 1961, asking the question: "How far will a human being go if an anonymous authority orders him to torture or even to kill a fellow human?" I was approached in the street for no particular reason and I became one of those unlucky few who became part of the experiment. I had nothing in particular planned for the day just the usual browsing around the shops and maybe buy a few t-shirts....   [tags: Papers] 716 words
(2 pages)
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Electromagnetism Experiment - Electromagnetism Experiment Introduction: ============= I start the introduction with a question: Will increasing current in an electromagnet increase the power of the electromagnet. The electromagnet we will be making is a very primitive one compared to that of the complexity of modern electromagnets found in machinery, but the way it works is almost identical. Electromagnetic technology is extremely complex and because it is an electromagnet, the higher the current, the stronger it becomes, and with this an electromagnet can become incomprehensively strong....   [tags: Papers] 1064 words
(3 pages)
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Enzymes Experiment - Enzymes Experiment Introduction Enzymes are biological catalysts that promote some of the thousands of chemical reactions that occur in living cells. They are large molecules that have a unique three-dimensional structure that allows it to react with a specific substrate. It is hypothesized that pH levels out of the normal range found in cells would denature the enzyme, slowing the enzyme's reaction rates. Hydrogen Peroxide (H2O2) is a poisonous chemical that is continually being formed as a byproduct of reactions in peroxisomes of living cells....   [tags: Papers] 1118 words
(3.2 pages)
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Beetroot Experiment - Beetroot Experiment We are trying to find how the temperature affects the rate at which the anthocyanin pigment leaves the cells, and at what point does the call wall melt. Beetroot Experiment =================== Task ---- We are trying to find how the temperature affects the rate at which the anthocyanin pigment leaves the cells, and at what point does the call wall melt. Please note the two results highlighted found in "test 4" have not been included into my results, as they are obviously anomalous....   [tags: Beetroots Anthocyanin Pigment Essays] 1099 words
(3.1 pages)
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Das Experiment - "Das Experiment" is based on a 1970's experiment called "The Stanford County Prison" experiment. A study done to see if the social structure of a prison affects the behavior of prisoners and guards and the perception of their roles. As the scientists trusted and soon learned to fear, the volunteers immediately fell into their, anticipated, roles. The guards abused their power and the prisoners let free what tugged them into their reality as humans. The study was stopped before the two weeks, however it proved to be too late....   [tags: Film] 922 words
(2.6 pages)
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The Catalase Experiment - The Catalase Experiment Aim: The aim of this experiment is to find out what affect the temperature has upon the speed of the decomposition of hydrogen peroxide when a biological catalyst is used; the enzyme catalase. Back ground: ============ Hydrogen peroxide is a decomposition reaction. This means that the hydrogen peroxide, if left for long enough, will eventually decompose. Hydrogen peroxide → Hydrogen + Oxygen 2H2O2→2H2O + O2 (Aq) (L) (G) Using a catalyst can speed up this reaction....   [tags: Papers] 830 words
(2.4 pages)
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Chromatography Experiment - Chromatography Experiment Implementing The plan that I was going to follow was altered in many ways. These alterations were needed to improve the experiment and therefore improve the results. Therefore the real method that was carried out is explained below. First of all a piece of Chromatography paper was taken and a line was drawn 2 cm above the bottom of the page. This was the origin line. On this line 10 crosses were drawn which would be the starting point of the samples....   [tags: Papers] 1277 words
(3.6 pages)
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Biology Experiment - Biology Experiment Prediction The temperature I thought the experiment would work best at is 37 c. I think this because your body temperature is 37oC and it is same as cows. Rennin is from a cow and that is what we used. Rennin is an enzyme and it is affected by temperature. Theory The lock and key theoryis simply a way of describing how specific an enzyme is for its substrate. Just like a lock requires a specifically shaped key for it to work so does an enzyme. Each enzyme is a protein which is a polypeptide chain folded into a complex 3 dimensional structure....   [tags: Papers] 954 words
(2.7 pages)
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Thermistor Experiment - Thermistor Experiment Aim: To investigate how the temperature affects the resistance of a thermistor Background Information: The resistance determines the difficulty in which energy can pass through a circuit. It is measured in Ohms (Ω) and the equation for this is; Resistance (Ω) = Voltage (V) Current (I) A thermistor is a type of variable resistor that's resistance is affected by heat and in my investigation I am experimenting with the manor in which temperate affects the resistance in a thermistor....   [tags: Papers] 2502 words
(7.1 pages)
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Evaluation of an Experiment - Evaluation of an Experiment An overall criticism of my method is the way I have chosen the three locations from each area. As I have simply estimated were I think is the beginning, middle and end of he area I am studying it is not very accurate. It would have been more accurate if I, for example, did it ever 10m as this would be more logical than measuring the entire area and finding out the exact beginning, middle and end as the areas studied were very large. In the method used to obtain the results for the top layer, I don not think there are many improvements as it is a simple method in which not much can go wrong....   [tags: Papers] 469 words
(1.3 pages)
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Neutralization Experiment - Neutralization Experiment AIM:- To investigate how heat is given out in neutralizing sodium hydroxide (NaOH) using different concentrations of Hydrochloric Acid. Background Information:- Substances that neutralize acids are called alkalis. An acid is a substance that forms hydrogen ions (H+ ) when placed in water. It can also be described as a proton donor as it provides H+ ions. An example of an acid is hydrochloric acid (HCl), Sulphuric acid (H2SO4) etc. An alkali is a soluble base and forms hydroxyl ions (OH-) when placed in water....   [tags: Papers] 1068 words
(3.1 pages)
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Osmosis Experiment - Osmosis Experiment Aim: To investigate the factors which affect osmosis in potatoes and to investigate one in detail. Introduction: Osmosis is the net movement of water from a high concentration to a low concentration through a semi permeable membrane. This diagram demonstrates it. In plants osmosis takes place between the cytoplasm and the solution outside of the cell. The effects of osmosis on the plant cell are visible to the eye. When a plant cell is placed in a less concentrated sugar solution the water passes through the cell wall, cell membrane and cytoplasm and into the central vacuole....   [tags: Papers] 1667 words
(4.8 pages)
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Parachute Experiment - Parachute Experiment Prediction My prediction is that as the weight of plastercine increases the time taken for the parachute to reach the ground will decrease I think this because when the weight has just been dropped it is going slowly, but as it falls through the air it will gain speed until it reaches its terminal velocity. The weight does not change but the A.R gets bigger until it equals out the downwards force of gravity, so when the weight is larger it will have to fall further before the forces equal and it reaches terminal velocity....   [tags: Papers] 592 words
(1.7 pages)
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Electroplating Experiment - Electroplating Experiment Aim To find the amount copper gains or loses on the electrodes using different amounts of current each time during electrolysis. How the changing of current affects the electroplating of copper. Introduction Electroplating is generally carried out in order to improve the appearance or corrosion resistance of the surface of a metal by electrodepositing a thin layer of metal ion on it. The metal substrate to be coated is made by the cathode in an electrolytic cell....   [tags: Papers] 2202 words
(6.3 pages)
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Electrolysis Experiment - Electrolysis Experiment Aim: To find out how current affects the rate of electrolysis. Pre-test: Pre-test Apparatus: 1. Power Pack 2. Stop watch 3. 3 wires 4. Amp meter 5. A piece of Card 6. stop watch 7. Top pan balance Pre-test Method: Text Box: 1. Check to see if all the apparatus work by forming a small circuit with a bulb 2. Collect apparatus and set them out like the diagram below. Ensure that the positive wire leads to the anode and the negative leads to the cathode....   [tags: Papers] 1667 words
(4.8 pages)
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BaBar Experiment - BaBar Experiment Abstract I investigated the L = 1 mesons D*2(2460)0 and D1(2420)0 using data gathered by the BaBar detector at Pep-II. The decay process of these particles is interesting because it could serve to confirm or deny certain predictions made by HQET models. Thus far, the data gathered rougly conforms with measurements made by the CLEO and ARGUS collaborations. The data is still preliminary, however, and as such this paper should be considered merely a summary of the work done thus far....   [tags: Chemistry Science Scientific Essays]
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1469 words
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The Puritan Experiment - The Puritan Experiment The Puritan experiment carried out in New England was a failure. The reason for this was that the people simply lost faith. The contradictions in the religion and the general feeling of betrayal caused the people to reject the ideals that were once held as sacred and perfect. The puritan religion was based on several tenants that, for a most part, contradicted each other. Man's fate was said to be pre determined and salvation was out of his control, but at the same time, man was expected to live a near perfect lifestyle for no truly justified reason....   [tags: Papers] 678 words
(1.9 pages)
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Experiment In Pupilometry - Introduction: Pupilometry is the study of how a pupil reacts to different emotions and stimuli. The research on the topic of pupilometry is scattered and fairly shallow. Related research has been conducted on facial expressions and their reaction and relation to emotion. There are some relationships to the facial expression research and pupilometry, but these relationships do not tell the whole story. Some interest has been brought up through research in the field of pupilometry and its predictive powers on emotion....   [tags: essays research papers fc]
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(6.2 pages)
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Statistics Experiment - Statistics Experiment For my maths coursework I will be conducting an investigation into statistics. I had a choice for this coursework of both statistics on year 10 to 11 school children, and facts about them and also their likes in terms of sport and subjects at school. I chose not to do this project on that information; instead I chose data on 100 different cars, the reason for this is that I like cars more and may perhaps pursue it as a career. I did not want to do a project on data that I have no interest in....   [tags: Papers] 579 words
(1.7 pages)
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Statistics Experiment - Statistics Experiment Statistics Hypothesis- In my investigation I plan to find out whether my theory that year 10 pupils are better at estimating the length of a stick than year 7 pupils. Plan- In my investigation I plan to use secondary data gathered from both year 7 and year 10 pupils, which I will then do a random sample of which will be used to find the mean, median, mode, range as well as standard deviation which I will then put into groups and frequency tables to compare and from this I will hopefully be able to come to a conclusion....   [tags: Papers] 1089 words
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Pythagoras Experiment - Pythagoras Experiment Aim: To investigate the relationships between the lengths of the 3 sides of the right angled triangles and the perimeters and areas of these triangles. Task 1: a) The numbers 5, 12, 13 satisfy the condition. 5² + 12² = 13² Because 5² = 5x5 = 25 12² = 12x12 = 144 13² = 13x13 = 169 And so 5² + 12² = 25 + 144 = 169 = 132 b) The Numbers 7, 24, 25 also satisfy the condition. 7² + 24² =25² Because 7² = 7x7 = 49 24² = 24x24 = 576 25² = 25x25 = 525 And so 7² + 24² = 49+ 576 = 625 = 25² Task2: The perimeter and area of the triangle are: Perimeter = 5 + 12 + 13 = 30 units Area = ½ x 5 x 12 = ½ x 60 = 30 square units a) 5 12 13 [IMAGE] b) 24 7 25 [IMAGE] Perimeter = 7 + 24 + 25 = 56 units Area = ½ x 7 x 24 = ½ x 168 = 84 square units [IMAGE] Length of shortest side Length of middle side Length of longest side Perimeter Area 3 4 5 12 6 5 12 13 30 30 7 24 25 84 84 Task3: Length of short side is going to be in fixed steps meaning that this is a linear sequence and the length of middle side and longest side is actually a quadratic sequence because they are not in fixed steps and in geometric sequence....   [tags: Papers] 1227 words
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Levittown Experiment - Levittown Experiment Levittown project was taken up in the U.S. after the end of Second World War, with the aim of providing mass housing facilities to people in the wake of increasing urbanization and problems of accommodating large population in limited urban area (Friedman. 1995). The first of Levittown apartments were constructed on Long Island, New York and they symbolized the modern trends of urbanization and housing developments (Clapson. 2003). This paper shall study the impact of Levittown project on trends of further urbanization and analyze the aesthetics of design and development involved in it....   [tags: Construction Housing Architecture] 1078 words
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Punishment in the Milgram Obedience Experiment - The Milgram obedience experiment began in July of 1961. The experiment was conducted by Stanley Milgram, a psychologist at Yale University. The experiment was met to measure the willingness of participants to obey an authority figure who instructed them to perform an experiment that was against their moral views. Milgrams participants for his experiments were from all backgrounds. The subjects ranged from college graduates to people that had not finished grade school. (Milgram’s Experiment on Obedience to Authority) They were told the experiment would study the effects of punishment on a person’s learning ability....   [tags: Psychology, Psychology Research, Research Paper] 807 words
(2.3 pages)
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Reviewing Zimbardo’s Experiment - ... The American Psychological Association has since established guidelines for diversity in experiments that are conducted. In the book Research and Evaluation in Education and Psychology Donna Mertens explains the guidelines for diversity as “recognition of the ways in which the intersection of racial and ethnic group membership with other dimensions of identity…enhances the understanding and treatment of all people” (Mertens 313). Another issue in Zimbardo’s experiment was in the treatment of the prisoners....   [tags: Case Study, solution]
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Experiment of Perceptual Settings - Experiment of Perceptual Settings Experiment of Perceptual Settings The Webster dictionary determines perception to be knowledge by the senses and/or life that have an influence on people’s perception (Parker, 2010). The way people perceive things is based on their five senses. The sense of sight was the main sense used in the following experiment, as well as a person’s memory. Eyes tell people what they want to see and want to know. They tell you how to conceive a person and their behaviors as well as their reactions....   [tags: Perception]
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My Experiment withTranscendentalism - Transcendentalism is the system of philosophy emphasizing the intuitive and spiritual above the empirical and material. Through my experimentation I have found that the two most important principles of Transcendentalism are self-reliance and anti-materialism. While I experimented being completely self-reliant I made my own meals and did everything myself so I did not have to wait or rely on anyone. Another experiment I conducted was anti-materialism, during which I did not use any items of technology that were not completely necessary, and instead focused my attention on important things like making music and doing well on my schoolwork....   [tags: philosophy, thoreau] 549 words
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The Implications of the Stanford Prison Experiment - The Implications of the Stanford Prison Experiment In 1971 Dr Philip Zimbardo conducted an experiment in the basement of Stanford University. This involved imprisoning nine volunteers in a mock up of Stanford prison, which was policed by nine guards (more volunteers). These guards had complete control over the prisoners. They could do anything to the prisoners, but use physical violence. The subjects were all students applying for summer jobs to get some money. To make it a fair test, the subjects were made to take psychological tests to make sure they were mentally fit....   [tags: Papers] 737 words
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Experiment of Starch Mixed with Amylase - Experiment of Starch Mixed with Amylase Planning Aim: The aim of this experiment is to learn what happens when starch is mixed with amylase. I also intend to investigate the effects of changing one or more of the variables involved in the experiment. Key Factors: Listed below are each of the key factors featured in the experiment and the affect that each one may have upon the investigation… Temperature: The temperature of the room when the experiment is being carried out will determine the rate at which the amylase works since amylase is most efficient at body temperature, which is between 37-40°C, and less effective in more extreme conditions....   [tags: Papers] 1882 words
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The Simple Pendulum Experiment - The Simple Pendulum Experiment General Plan The first thing I am going to do is outline a general plan for this experiment. In this experiment, I am going to be measuring the effect of two variables on the time of one oscillation of a simple pendulum. The two variables that I have chosen are the length of the pendulum's string and the mass of the pendulum's bob. I will vary these two items and record results for the time of one oscillation of a pendulum with different mass/length of string....   [tags: Papers] 2064 words
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Yeast Respiration Experiment - Yeast Respiration Experiment Temperature (°C) [IMAGE]Number of Bubbles 10 0 20 14 30 17 40 17 50 19 60 24 70 35 80 48 Data Analysis and Conclusion The data shows a clear rise in yeast respiration as the temperature is raised. Although an optimum temperature is not evident, it can be seen that temperatures exceeding 60°C speed up the reaction. This shows the general rule that reactions become faster when the temperature is increased....   [tags: Papers] 355 words
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Rutherfords Gold Foil Experiment - Rutherford's Gold Foil Experiment Rutherford started his scientific career with much success in local schools leading to a scholarship to Nelson College. After achieving more academic honors at Nelson College, Rutherford moved on to Cambridge University's Cavendish laboratory. There he was lead by his mentor J.J. Thomson convinced him to study radiation. By 1889 Rutherford was ready to earn a living and sought a job. With Thomson's recommendation McGill University in Montreal accepted him as a professor of chemistry....   [tags: essays research papers] 783 words
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The Milgram Experiment of Obedience - Milgram’s experiment of obedience was done in 1961 soon after WW2 and the trials for war crimes against the Nazi’s were being done. An ad was placed in the newspaper for a Memory and Learning Experiment at $4.50 an hour, but the experiment was ultimately on Obedience. The experiment was conducted on behalf of Adolph Eichmann who was convicted of war crimes, and crimes against humanity, but he was only following orders. Eichmann filled out death warrants but never carried out the killings. The objective of the experiment was to find out if people would obey higher authority even though what they were doing was morally wrong....   [tags: essays research papers] 432 words
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Bouncing Ball Experiment - Bouncing Ball Experiment A squash ball is a hollow ball made of rubber, with air inside. Before starting a game of squash, most players will "warm up" the ball by knocking it around the court. This raises the temperature of the ball and increases the "bounciness". In this experiment you can investigate the effect of temperature on the height to which a ball bounces. An alternative experiment is to investigate how the height of each successive bounce changes. Planning your experiment The height to which the ball bounces will depend on the initial height and the temperature, so you must decide which of the variables you are going to investigate and how you can ensure that your experiment is a "fair test"....   [tags: Papers] 764 words
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The Enzyme Catalase Experiment - The Enzyme Catalase Experiment Aim A series of experiments involving the enzyme Catalase has been performed in order to determine some of the enzyme's properties. The enzyme had its reaction rate found in different conditions. Variation of enzyme concentration, variation of pH, variation of temperature, and the effect of different concentrations of inhibitors were all tested. Increasing the enzyme concentration increased the reaction rate. An optimum pH and temperature were found for the enzyme, outside of this optimum the reaction rate would be lower....   [tags: Papers] 1751 words
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Catalase Activity Experiment - Catalase Activity Experiment Aim: to find out if different concentration of hydrogen peroxide release different amounts of oxygen when in contact with catalase enzyme. Risk assessment: Hydrogen peroxide is corrosive and can therefore irritate the skin and damage the eye if it comes into contact with these. To prevent this extra caution must be taken to avoid contact with the skin and goggles should be worn while carrying out the experiments. Other sharp implements such as the scalpel used for cutting the potato can be dangerous if the sharp side comes into contact with the skin as it could cut it....   [tags: Papers] 1211 words
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Syringe Test Experiment - Syringe Test Experiment Formula Word: - Calcium Carbonate + Hydrochloric acid = Calcium Chloride + Water + Carbon Dioxide Symbol: - CaCOз + 2HC = CaCl + H 0 + CO Equipment: - Flask, Glass gas syringe, Bung, Marble chips (Calcium Carbonate (CaCOз)) and tubing. Safety Because of the dangerous chemical that will be handled goggles should be wore during the experiment in case any should get in your eyes while the chemical is being measured and the experiment is happening....   [tags: Papers] 673 words
(1.9 pages)
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Resistance of Wire Experiment - Resistance of Wire Experiment My coursework is about the resistance of the length of a wire. Resistance occurs when the electrons travelling through the wire collide with the atoms of the wire. These collisions slow down the flow of electrons causing resistance. Resistance is a measure of how hard it is for the electrons to move through the wire. Factors Temperature: If the wire is heated up the atoms in the wire will start to vibrate because of their increase in energy. This causes more collisions between the electrons and the atoms as the atoms are moving into the path of the electrons....   [tags: Papers] 485 words
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Heat Energy Experiment - Heat Energy Experiment Aim: To measure the heat energy released in a burning fuel. Diagram: [IMAGE] Method: * The apparatus was set as shown in the diagram. * 20ml of water were measured. * The initial temperature of the water was measured as well as the distance from the tile to the bottom of the test tube. * The mass of the watch glass with and without the fuel was measured. * The fuel was lighted with a lighted splint and left to burn until it ends. * The mass of the watch glass was then re-measured....   [tags: Papers] 505 words
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Plan On Osmosis Experiment - Plan On Osmosis Experiment Introduction Knowing that osmosis (a diffusion of water) will occur across a semi-permeable membrane whenever there is a difference between the water concentration on the two sides of the membrane. And knowing that when this happens to all they will either become turgid if water flows into them, or plasmolysed if the water flows out of them, and therefore change their volume, we are going to test the hypothesis that: "If the concentration of a solution into which a cylinder of potato cylinders are placed is greater than a certain level the cylinder will contract, and if the concentration is less than that it will expand." Aim 1....   [tags: Papers] 2551 words
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Metal Chemistry Experiment - Metal Chemistry Experiment Aim My aim is to plan and carry out an investigation that will enable me to put 5 metals in order of reactivity. The 5 metals are zinc, magnesium, copper, iron and calcium. I am also provided with Copper (II) Sulphate solution. Equipment Zinc, magnesium, copper, iron, calcium, 500 cm3 CuSO4, Polystyrene cup with lid, thermometer, measuring cylinder, stop watch, spatula and safety specs. Safety In the experiment I am using substances that are irritant and harmful....   [tags: Papers] 615 words
(1.8 pages)
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Experiment on Rates of Reaction - Experiment on Rates of Reaction Rates Of Reaction: The time taken for a reaction to take place. The speed of the reaction has a big effect on the time, e.g. time taken for concrete to set may take hours, days or even weeks. Factors: Temperature: The temperatures during the rates of reactions are important because they can change how quick the reaction takes place. · Increasing the temperature will cause the particles to move faster, with more energy. · They will therefore collide more often and with greater concentration....   [tags: Papers] 590 words
(1.7 pages)
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Temperature and Squash Balls Experiment - Temperature and Squash Balls Experiment Introduction I am going to do an experiment on how high a squash ball bounces at different temperatures from the same height. Theory When a squash ball hits the wall the air molecules inside the ball heat up and make the ball warm. When they move faster they hit the rubber wall harder therefore makes the ball hotter. The reason why the ball moves faster is that when the ball hits the wall it causes friction and the molecules move faster an hit the wall harder therefore hotter molecules move faster and cold molecules move slower....   [tags: Papers] 691 words
(2 pages)
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Rates of Reaction Experiment - Rates of Reaction Experiment Rate of reaction means the rate of formation of a product/disappearance of a reactant, this is useful because we can time the different concentrations reacting with the acid, and give each of them a rate, based on the formula rate = 1/time. Rate of reaction is what we use to measure how quickly a reaction takes to reach a certain point in the reaction in this case it is when it gets to certain cloudiness. In this investigation, we will need to measure the time of the reaction, so we can make a rate for it, to do this we use the formula, - rate = 1/time * 1000, we use the *1000 so that it is a manageable number to plot on a graph if necessary....   [tags: Papers] 1528 words
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Evaluation of a Catalyse Experiment - Evaluation of a Catalyse Experiment Interpretation In my own findings, an anomaly has occurred, as at 60 degrees, the height of froth decreased to -3mm and then increased to 2mm. This is an anomalie as usually the graph should start moving up gradually and then decrease and stay. In addition, a pattern is shown on the class' average data as the graph starts at 41mm at zero degrees, increases to an optimum point of 40 degrees and then decreases to 80. Therefore, it is seen that the class averages are more accurate as it has been repeated eight times making it more reliable....   [tags: Papers] 537 words
(1.5 pages)
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Circadian Rhythms: Experiment - Circadian Rhythms: Experiment Circadian Rhythms are the times of day that you get either hungry, tired, or energetic. This paper is to describe an experiment that I have thought up that will test to see if circadian rhythms differ from people who perceive themselves as night-time people and people who perceive themselves as morning people. What is your hypothesis. My hypothesis is that night-time people's circadian rhythms are extremely different than morning people's circadian rhythms. What population are you going to study....   [tags: essays research papers] 675 words
(1.9 pages)
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Producing Fertiliser Experiment - Producing Fertiliser Experiment The aim of this experiment will be to produce a small batch of ammonium nitrate fertiliser using nitric acid and ammonia, and to calculate the percentage yield produced and compare with the theoretical yield. I think we will be able to produce fertiliser however because of the equipment we have available to use it may not be possible to produce a relatively high yield compared to fertiliser produced in industry. Apparatus * 10ml 1M HNO3 (nitric acid) * 10ml 1M aqueous NH3 * Evaporating Dish * Methyl-Orange Indicator * Bunsen Burner, Tripod, and Metal Gauze * Ice cubes * Filter paper, funnel, and 50ml beaker * 3-figure balance Method 1....   [tags: Papers] 469 words
(1.3 pages)
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An Experiment with an Air Pump - An Experiment with an Air Pump Is it ethical or even helpful to try to impose order on a haphazard existence. Is it right to play God, to steal the limelight from the cosmos. Man used to ponder existence, but with the increasing possibilities of science, we now ponder our power over existence. In “An Experiment with an Air Pump,” Shelagh Stephenson uses symbolism associated with Isobel as a voice of foreboding in a society “enraptured by the possibilities of science” (3). Stephenson associates Isobel with a bird, a pile of bones, and a sheep to reveal the dark side of the “light,” the scientific revolution....   [tags: Shelagh Stephenson Science Technology Essays] 908 words
(2.6 pages)
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Bouncing Ball Experiment - Bouncing Ball Experiment Our simple experiment is to drop a ping pong ball weighed at 3 grams from a height of 1 metre then 90cm, 80cm, 70cm, 60cm, 50cm, 40cm and of course zero cm. From dropping the ball we can see how high the ball will bounce to after having a loss or gain of energy due to sound or movement of the ball as it hits a hard surface. I will drop the ball 3 times altogether, on the second bounce I will look specifically at the point it is likely to bounce to so the results will be more accurate....   [tags: Papers] 1268 words
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