Science Essays
4,476 Science Free Papers: 3,421 - 3,450
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Separation of Ferrocene and Acetylferrocene by Chromatography
Purpose 1. To prepare a dry-packed sample of product mixture of ferrocene and Acetylferrocene 2. To separate and purify the components in the product mixture by column chromatography. 3. To check the purity of the components by thin-layer chromatography (TLC). 4. To calculate the yield of acetylferrocene and the percent
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Separation of Gold
The industrial separation process that I have decided to do is gold separation. Gold separation can be done in a number of ways but there is not always one way to do it, but the combination of a couple of these processes to extract pure gold. Gold is obtained form
Rating:Essay Length: 1,665 Words / 7 Pages -
Separation of Three Compounds
Experiment 1 Separations in a Separating Funnel Objective The aim was to separate, using a separating funnel only, the three compounds benzimidazole, benzoic acid and diphenylethanedione in solution. The experiment was based on the principles that carboxylic acids can dissolve in water when ionised first (into salts) using a base
Rating:Essay Length: 1,414 Words / 6 Pages -
Sexual Reproduction
sexual reproduction involves the fusion of teh nucleus of an ovum(female sex cell) with the nucleus of a sperm(male sex cell) in the fallopian tube sperm - elongated shape -> tail which allows sperm to swim - little cytoplasm - nucleus contains 23 chromosomes -acrosome contains enzymes ovum - circular
Rating:Essay Length: 522 Words / 3 Pages -
Shielding from Electric Fields with Conductor
Shielding from Electric fields with conductor Electrical Conductors are used all over the world for one main purpose, which is to shield from Electric Fields. Electrical conductors can be found in various electronic appliances such as clocks, blenders, vacuum cleaners, stereos, monitors, televisions and many more, which all produce electric
Rating:Essay Length: 599 Words / 3 Pages -
Shikimic Acid Fermentation
In the Name of God Biotechnology MSc. Seminar: Current issues in production of Shikimic Acid, intermediate for the production of Oseltamivir, the Avian Flu drug Supervised by: Dr. Reza Yegani Dr. Mohammad Hossein Sarrafzadeh Mr. Habibollah Ramezanzade by: Kaveh Yazdifard Presented on: 1385/10/3 Contents Acknowledgement Introduction Shikimic Acid &
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Short History of Nearly Everything Reflection
A Standard Scientific Method Does Not Exist Some people believe that there is a cookie cutter method to perform science. However, a standard scientific method does not and will never exist. Science is a lot more complex than following a set of standard procedures. Scientific events and discoveries happen very
Rating:Essay Length: 3,394 Words / 14 Pages -
Short History of the Quantum Theory of the Atom
The Development of the Quantum Theory of the Atom The early beginnings of the quantum theory of the atom start with Niels Bohr, a German physicist. Many problems existed with the theories of the atom at his time, but many resources also existed for deriving more improved models. History previous
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Should an Hiv Positive Person Be Allowed to Work in a Healthcare Facility?
Should an HIV Positive Person be allowed to Work in a Health Care Facility? Imagine going to your doctor's office for a simple checkup. The examination approaches its end and a sample of your blood is needed. As your doctor prepares the needle, he unknowingly pricks himself getting his blood
Rating:Essay Length: 703 Words / 3 Pages -
Should Creationism and Evolution Get Equal Time in Schools?
Should Creationism and Evolution Get Equal Time in Schools? Introduction and general information about the topic The Creation-Evolution controversy is a recurring dispute about the origins of Earth, humanity, life and the universe. While evolution is a theory that tries to explain such origins, creationism is taken as-is strictly from
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Should Creationism and Evolution Get Equal Time in Schools?
Introduction and general information about the topic The Creation-Evolution controversy is a recurring dispute about the origins of Earth, humanity, life and the universe. While evolution is a theory that tries to explain such origins, creationism is taken as-is strictly from religious books - the Bible. The legal status of
Rating:Essay Length: 2,976 Words / 12 Pages -
Should Gay Marriages Be Legal?
Should gay marriages be legal? Clearly we as a nation are undecided on this issue. 36 states have passed legislation banning gay marriages, yet the state of Vermont recently passed a law that allows homosexual couples the right to participate in civil unions. Some other states are also debating whether
Rating:Essay Length: 260 Words / 2 Pages -
Should New Jersey Legalize Medical Marijuana and Decriminalize Marijuana?
You will not endure pain if you become bound to the drug said Galen, a roman physician in context to gladiators consuming opium to numb their battle wounds. For over 4,800 years marijuana has been used for medical purposes. Until the 1937 Marijuana Tax Act banned marijuana and created uncertainty
Rating:Essay Length: 1,282 Words / 6 Pages -
Should Parents Immunize Their Children?
Should Parents Immunize Should Parents Immunize Their Children? ________________ Should Parents Immunize Their Children? In 2015 measles made a comeback in the United States after it was thought it was eradicated for the past 15 years. Dan Margolies (2015) wrote an article looking at why this highly contagious disease is
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Should We Spend Time in the Sun?
Should we spend time in the sun? In this essay, I am going to answer the above question through all the research I have been doing in the past few days. The sunlight gives both the benefits and the harms. The effects of sunlight upon the skin are due to
Rating:Essay Length: 831 Words / 4 Pages -
Should We Teach Evolution or Creationism in Our Schools?
Should we teach Evolution or Creationism in our schools? God only knows. Most Teachers and scientists believe that teaching creationism in the schools is inappropriate because they consider this a religious teaching. Creationists believe that Intelligent Design should be taught in the schools because they hold the Bible to be
Rating:Essay Length: 748 Words / 3 Pages -
Shuttle-Mir Program
The Shuttle-Mir Program was a collaborative space program between Russia and the United States, which involved American Space Shuttles visiting the Russian space station Mir, Russian cosmonauts flying on the shuttle and American astronauts engaging in long-duration expeditions aboard Mir. The program, sometimes called 'Phase One', was intended to allow
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Siam Winery; Improvement on Water Usage in Manufacturing Process
Factory Siam Winery Co. Ltd. Siam Winery Co. Ltd, Winery Bevarages Manufacturing factory, is located on 9/2 moo 3 Bangtorat district, Muang, Samutsakorn Province. A manufacturing process is divided into 2 main production lines which are Wine Cooler and Still Wine. Both of the product lines are sold domestically and
Rating:Essay Length: 579 Words / 3 Pages -
Sickle Cell Anaemia
Sickle cell anaemia What is sickle cell anaemia? Sickle cell anaemia is an inherited disease which is passed on by both parents and is not a contagious or infectious disease. This gene is normally recessive, but can sometimes the child can get sickle cell anaemia if the have received the
Rating:Essay Length: 486 Words / 2 Pages -
Sickle Cell Anemia
Abstract Sickle cell anemia is a group of inherited red blood cell disorders. Normal red blood cells are round like doughnuts, and they move through small tubes in the body to deliver oxygen. Sickle red blood cells become hard, sticky and shaped like sickles used to cut wheat. When these
Rating:Essay Length: 691 Words / 3 Pages -
Sickle Cell Anemia
Sickle cell anemia is a hereditary disorder that mostly affects people of African ancestry, but also occurs in other ethnic groups, including people who are of Mediterranean and Middle Eastern descent. More than 70,000 Americans have sickle cell anemia. And about 2 million Americans - and one in 12 African
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Sickle Cell Anemia
Sickle Cell Anemia Jenkins 1 Abstract Sickle Cell Anemia is a hereditary disease that changes the smallest and most important components of the body. A gene causes the bone marrow in the body to make sickled shapes, when this happens; it causes the red blood cell to die faster.
Rating:Essay Length: 5,595 Words / 23 Pages -
Sickle Cell Anemia
Sickle Cell Anemia Sickle cell anemia is a hereditary blood disorder that mostly affects African-Americans. Sickle cell may have originated in Africa where they called the children born with this disease "ogbanjes," children who come and go, because they died soon after birth. The slaves brought sickle cell to
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Sickle Cell Anemia
Sickle Cell anemia is a group of inherited red blood cell disorders, or a collection of recessive genetic disorders characterized by a hemoglobin variant called Hb S. Normal red blood cells are round like doughnuts, and they move through small blood tubes in the body to deliver oxygen. Sickle
Rating:Essay Length: 1,361 Words / 6 Pages -
Sickle Cell Anemia
Sickle Cell anemia is a blood disease that is inherited by the parents and lasts forever. The ones that have this disease inherit two genes from each parent that are abnormal which are the sickle cell genes. These genes inform the body to make abnormal hemoglobin which causes the
Rating:Essay Length: 531 Words / 3 Pages -
Sickle Cell Anemia
Sickle Cell Anemia Sickle cell anemia is an inherited blood disorder, characterized primarily by chronic anemia and periodic episodes of pain. The underlying problem involves hemoglobin, a component of the red cells in the blood. The hemoglobin molecules in each red blood cell carry oxygen from the lungs to the
Rating:Essay Length: 687 Words / 3 Pages -
Sickle Cell Anemia
The erythrocytes of certain individuals possess the capacity to undergo reversible changes in shape in response to changes in the partial pressure of oxygen. When the oxygen pressure is lowered, these cells change their forms from the normal biconcave disk to crescent, holly wreath, and other forms. This process is
Rating:Essay Length: 842 Words / 4 Pages -
Sickle Cell Anemia
Sickle cell crisis (HgbSS) is a debilitating disorder characterized by blood cells changing into a sickle shape as a result of stressful conditions such as exhaustion, hypoxia, severe infection, or even cold temperatures. "The term sickle cell disease (SCD) is used in a generic sense to refer to all the
Rating:Essay Length: 3,686 Words / 15 Pages -
Sickle Cell Disease
Sickle Cell Disease is a hereditary blood disorder that affects the oxygen-carrying part of blood, the red blood cell. In other words, it is visible by diseased red blood cells that have a sickle shape. Red blood cells have proteins called hemoglobin. Hemoglobin transports oxygen from your lungs to every
Rating:Essay Length: 685 Words / 3 Pages -
Sience Topic 2
Simple Nanofactories vs. Floods of Products Chris Phoenix, Director of Research, Center for Responsible Nanotechnology In last month's essay, I explained why even the earliest meter-scale nanofactories will necessarily have a high throughput, manufacturing their own mass in just a few hours. I also explained how a nanofactory can fasten
Rating:Essay Length: 2,681 Words / 11 Pages