Science
The scientific world contains a wealth of knowledge that enables mankind to live the way it does. EssaysForStudent.com can help you close the gaps in your knowledge.
4,610 Essays on Science. Documents 2,221 - 2,250
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Iceland
Iceland is a volcanic island in the North Atlantic Ocean east of Greenland and immediately south of the Arctic Circle. It lies about 4,200 kilometers (2,600 mi.) from New York and 830 kilometers (520 mi.) from Scotland. About 79% of Iceland's land area, which is of recent volcanic origin, consists of glaciers, lakes, a mountainous lava desert (highest elevation 2,000 meters-- 6,590 ft.--above sea level), and other wasteland. 20% of the land is used for
Rating:Essay Length: 321 Words / 2 PagesSubmitted: March 7, 2010 -
Identification of Conjugated Diene
Identification of a Conjugated Diene from Eucalyptus Oil Purpose: The purpose of this experiment was to prepare the Diels-Alder adduct of the unknown Conjugated diene in eucalyptus oil, to separate the adduct, and identify the unknown diene from the melting point of itЎЇs adduct. Introduction: This experiment was performed using techniques of heating under reflux, vacuum filtration, recrystallization, and melting point measurements. These techniques were used to separate the Diels-Alder adduct of the unknown conjugated
Rating:Essay Length: 597 Words / 3 PagesSubmitted: February 5, 2010 -
Identification of Unknown Plasmid
I. Title Identification of an Unknown Plasmid In this experiment, we determined the phenotypic capability of an unknown plasmid along with its size. With the use of gel electrophoresis, we analyzed the gel photograph by using a standard DNA marker, Lambda HindIII, and came to a conclusion based on our results. II. Abstract Two experiments were done to identify an unknown plasmid. The success of these experiments came from the use of modern day
Rating:Essay Length: 3,534 Words / 15 PagesSubmitted: January 17, 2010 -
Identify the Elements That Make Up Water and the Proportion of Each in a Water Molecule
Purpose: The purpose of the experiment is to identify the elements that make up water and the proportion of each in a water molecule. Hypothesis: The elements that make up water are hydrogen and oxygen and will be in a 2:1 ratio. I believe this because the chemical formula for water is H2O (2 hydrogen and 1 oxygen). Materials: * Power supply (6v) * Red connecting wire * Black connecting wire * Test tube rack
Rating:Essay Length: 359 Words / 2 PagesSubmitted: April 18, 2018 -
Identify the Positive or Negative Effects of Science on Food
“Identify the positive or negative effects of science on food" The fact that science has brought several positive inventions which improving our life. However, not every innovation is good things, for example, genetically modified organism foods. The argument about food modification has positive or negative effects will continue until scientists and public get an exact answer from long-term findings and researches. Nowadays, GMO foods are become more popular. GMO foods is the action to added
Rating:Essay Length: 437 Words / 2 PagesSubmitted: March 24, 2018 -
Identifying Organic Compounds Lab Report
Purpose: To use indicators to test for the presence of organic compounds in certain substances. Hypothesis: Honey will contain sugars, egg white contains proteins, corn oil contains lipids, oats contains starches and proteins, gelatin contains sugars and proteins, potatoes contain starch, and apple juice contains lipids and sugars. Materials: 9 test tubes Test tube rack Test tube holder Grease pencil Hot plate 20 ml honey solution 20 ml egg white and water mixture 20 ml
Rating:Essay Length: 730 Words / 3 PagesSubmitted: February 12, 2010 -
Identifying Problems and Issues in Developing and Implementing 504 Plans and I.E.P. Plans in South Carolina Schools to Ensure Appropriate Education for Exceptional Children.
Identifying problems and issues in developing and implementing 504 Plans and I.E.P. Plans in South Carolina schools to ensure appropriate education for exceptional children. December 11, 2005 Abstract Special needs students were identified by Parent/Student Advocates serving Horry, Georgetown and Anderson Counties in South Carolina with the written consent of the parents and students. When appropriate, the files containing 504s and I.E.P.s (Individualized Education Plans), psychological assessments, doctors’ reports, outside assessment by psychologist, neuro-psychologist,
Rating:Essay Length: 3,782 Words / 16 PagesSubmitted: December 30, 2009 -
Identifying Rates of Reactions with Different Factors
Identifying Rates of Reactions with Different Factors Objective: To test what factors can significantly affect the efficiency of a reaction. Reactions for the lab: (part 1/2) = Mg + 2HCl → MgCl2 + H2 (part 3) = CaCO3 + 2HCl → CaCl2 + H2O + CO2 (part 4) = 10FeSO4 + 2KMnO4 + 8H2SO4 → 5Fe2(SO4)3 + 2MnSO4 + K2SO4 + 8H2O 2KMnO4 + 5Na2C2O4 + 8H2SO4 → K2SO4 + 2MnSO4 + 5Na2SO4 + 8H2O
Rating:Essay Length: 795 Words / 4 PagesSubmitted: November 16, 2018 -
Identifying Starch Using Iodine as a Reagent
Identifying Starch Using Iodine as a Reagent INTRODUCTION Starch is a carbohydrate (polysaccharide) which is made from thousands of α glucose units, joined together by glycosidic linkages. It is the main compound that all green plants use to store their food energy. Starch is insoluble in water. The purpose of this experiment is to demonstrate that using an iodine solution, starch is present in potato. MATERIALS AND METHOD * We used a scalpel and cut
Rating:Essay Length: 412 Words / 2 PagesSubmitted: July 8, 2016 -
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Rating:Essay Length: 307 Words / 2 PagesSubmitted: May 11, 2011 -
If Air Pollution Increased Much More, Some Wise Guy Will Try to Purchase It
If air pollution increased much more, some wise guy will try to purchase it What do we know about air pollution? About the air itself? The 2nd question seems to be much easier to answer to.  The mixture of gases which consists of 78.08 per cent nitrogen, 20.95 per cent oxygen, 0.93 per cent argon, 0.03 per cent carbon dioxide, with smaller quantities of ozone and inert gases and forms the earth's atmosphere. 
Rating:Essay Length: 509 Words / 3 PagesSubmitted: December 9, 2009 -
If We Had Known About Green Chemistry in 1951, How Would Things Be Different Today?
If We Had Known About Green Chemistry In 1951, How Would Things Be Different Today? Green Chemistry is the making of chemical products that reduces or eliminates the use and production of hazardous substances in the designing, making, and use of chemical products. It involves the designing and re-designing of chemical creation and chemical products to prevent pollution which will therefore solve environmental problems. Green Chemistry is environmentally safe and has very little side effects
Rating:Essay Length: 716 Words / 3 PagesSubmitted: November 21, 2009 -
Igneous, Sedimentary & Metamorphic Rocks
Igneous, sedimentary & metamorphic rocks Igneous , Sedimentary, Metamorphic are rocks changed by magma or magma that changes into those rocks. There are there are three kinds of rocks Igneous Sedimentary, Metamorphic. The first rock is called igneous. igneous are formed when rock (magma) cools and solidifies, with or without crystallization, either below the surface. This magma can be derived from partial melts of pre-existing rocks in either the earths mantle or crust. Typically, the
Rating:Essay Length: 867 Words / 4 PagesSubmitted: January 15, 2010 -
Illegal Timber Imports
Illegal exports of timber from developing countries Research carried out for WWF suggests that the international timber trade is now the primary cause of forest degradation and loss in those forests that contain the highest levels of biodiversity. This contradicts the popular assumption that deforestation and forest degradation are caused mainly by shifting cultivators and fuelwood collection. Following centuries of degradation, many natural forest ecosystems are now severely threatened. Natural forests in many temperate and
Rating:Essay Length: 570 Words / 3 PagesSubmitted: February 7, 2010 -
Image Processing
Adaptive Shape Contour Tracing Algorithm by Emad Attalla, Ph.D. ABSTRACT In this paper we are going to present a new shape contour tracing algorithm called Ў§Adaptive Contour Tracing AlgorithmЎЁ. The algorithm can trace open and closed discontinuous digital shapes and return an ordered set of boundary points that represent the contour of the shape. Unlike other algorithms that return boundary points that are part of the traced shape, our algorithm returns background points that are
Rating:Essay Length: 1,704 Words / 7 PagesSubmitted: December 28, 2009 -
Immigration an Open or Closed Door
"Give me your tired, your poor, your huddled masses, yearning to breath free. The wretched refuse of your teeming shore; send these, the homeless, the tempest-tost to me, I lift my lamp beside the golden door!" This quote was written by Emma Lazarus and is the most famous one on the statue of liberty today. This quote represents what America was founded on, immigration. Even with this, immigration today is a growing topic of
Rating:Essay Length: 1,404 Words / 6 PagesSubmitted: December 3, 2009 -
Immune System Response to Hsp 60
Kamphuis, S., Kuis, W., deJager, W., Teklenburg, G., Massa, M., Gordon, G., Boerhof, M., Rijkers, G.T., Uiterwaal, C.S., Otten, H.G., Sette, A., Albani, S., Prakken, B.J. (2005). Tolerogenic immune responses to novel T-cell epitopes from heat-shock protein 60 in juvenile idiopathic arthritis. www.thelancet.com, 366, 50-56. Kamphuis et al. (2005) conducted a study on the effects of heat shock proteins (HSP60) when introduced to subjects or patients suffering from juvenile idiopathic arthritis. Their interest and hypothesis
Rating:Essay Length: 315 Words / 2 PagesSubmitted: March 29, 2010 -
Immunisation
Immunization, or immunisation, is the process by which an individual is exposed to an agent that is designed to fortify his or her immune system against that agent. The material is known as an immunogen. Immunization is the same as inoculation and vaccination in that inoculation and vaccination use a viable infecting agent like immunization does. Immunization is just the general term for vaccination and such things as what you gain from these process. When
Rating:Essay Length: 404 Words / 2 PagesSubmitted: December 21, 2009 -
Immunology of Aids
Although HIV was first identified in 1983, studies of previously stored blood samples indicate that the virus entered the U.S. population sometime in the late 1970s. Worldwide, an estimated 27.9 million people had become HIV-infected through mid-1996, and 7.7 million had developed AIDS, according to the World Health Organization (WHO). AIDS is a disease of the immune system, and is caused by Human Immuno deficiency Virus (HIV). HIV targets and infects T-helper cells and macrophages.
Rating:Essay Length: 3,864 Words / 16 PagesSubmitted: November 8, 2009 -
Impact of Aviation on the Global Atmopherer.Dissertation Proposal
The air travel accounts for almost 11% of Europe’s GDP and 24 million jobs. Air travel is the most popular mode of travel for both UK residents travelling abroad and for overseas residents visiting the UK. In 2005, UK residents made a record 53.6 million visits by air, representing almost four-fifths of all visits abroad (Friends of The Earth, 2006). The aviation industry currently faces a lot of impediments due to growing impacts of climate
Rating:Essay Length: 422 Words / 2 PagesSubmitted: January 10, 2010 -
Impact of Drought on Soil
Impacts of drought on soil resources management in Australia. Over the last decade the drought has been a visible part of the Australian live, the drought in the Australian agricultural and farming community resulted in a range of social and economic impacts on both the rural and metropolitan residence. Although the impact of the drought has had grave results on the soil resources, other contributors have had a direct impact on the current situation such
Rating:Essay Length: 609 Words / 3 PagesSubmitted: December 19, 2009 -
Impact of Global Warming on the World & Aviation
Impact of Global Warming on the World & Aviation “ We may have unwittingly begun a massive experiment with the system of the planet itself,” Margaret Thatcher, 1988. With the rising temperatures and ocean levels, global warming has been mentioned in the media since the late eighties. However, recently global warming has been receiving more attention with the change in weather patterns across the western United States. “In fact, global surface air temperature has increased
Rating:Essay Length: 2,937 Words / 12 PagesSubmitted: April 20, 2010 -
Impacts of Acid Rain - Air Pollution Creates Acid Rain
Impacts of Acid Rain Air Pollution Creates Acid Rain Scientists have discovered that air pollution from the burning of fossil fuels is the major cause of acid rain. Acidic deposition, or acid rain as it is commonly known, occurs when emissions of sulfur dioxide (SO2) and oxides of nitrogen (NOx) react in the atmosphere with water, oxygen, and oxidants to form various acidic compounds. This mixture forms a mild solution of sulfuric acid and nitric
Rating:Essay Length: 756 Words / 4 PagesSubmitted: March 1, 2010 -
Importance of Dopamine
IMPORTANCE OF DOPAMINE Importance/ Usage of Chemical: Dopamine is a hormone that induces pleasure in the brain. It is crucial to motivation, thinking and learning of a person. The chemical dopamine plays important roles in the brain and body.Inside the brain, dopamine plays important roles in executive functions, motor control, motivation, arousal, reinforcement, and reward, as well as lower-level functions. (Musacchio, 1975) Dopamine can be used for treating shock and low blood pressure due to
Rating:Essay Length: 1,420 Words / 6 PagesSubmitted: October 15, 2018 -
Importance of Organic Foods
Importance of Organic Foods The definition of organic agriculture is farming with the use of synthetic chemicals. After World War II, larger and increasingly automated farms, known as “factory farms,” put the synthetic fertilizers, pesticides and herbicides developed in the 1920s into widespread use. They found that more crops could be produced mass produced. What they did not realize were the dangers of using these chemicals and the effects they would have on the environment
Rating:Essay Length: 743 Words / 3 PagesSubmitted: November 13, 2009 -
Importance of Satellite Cells in Muscle Development
Importance of Satellite Cells in Muscle Development Satellite cells play an extremely vital role in muscle development. In all animals, the number of muscles and the number of muscle fibers are predetermined before birth. When a baby is born, the number of muscles and muscle fiber does not grow but only matures. Like other types of cells, muscle cells degenerate and get damaged due to everyday life. Satellite cells sole responsibility is to help recruit
Rating:Essay Length: 579 Words / 3 PagesSubmitted: March 5, 2010 -
Importance of Space Race
The Space Race was important to U.S history because of the significance of the battle between democratic society and totalitarian communism, because it brought an end to the Cold War, and because it led into further joint ventures between the United States and the Soviet Union (now Russia), including the first space station. (http://www.nasm.si.edu/exhibitions/gal114/gal114.htm)) This 18 year long race between the two nations for international superiority via space and the transportation needed to get
Rating:Essay Length: 479 Words / 2 PagesSubmitted: February 26, 2010 -
Important Properties of Water
High specific heat is one of five properties of water that is important to life. Specific heat is defined as the heat necessary to raise one gram of water by one degree Celsius. Because water’s temperature does not change dramatically when absorbing or losing heat, water can absorb or release exceeding amounts of heat (by breaking and forming hydrogen bonds) without affecting living organisms in the water and at the same time helping terrestrial organisms
Rating:Essay Length: 419 Words / 2 PagesSubmitted: November 13, 2009 -
Improving Physician and Nurse Collaboration and Communication
"I can find better nurse’s on the street than the ones who work on this floor”. The nurse’s who work on my floor in the facility where I work, are known throughout the hospital as some of the best. Some of the surgeon’s demand for their patients to be admitted to our floor after surgery due to the quality of care that the nurse’s provide the patient’s and their families. Most however are very critical
Rating:Essay Length: 691 Words / 3 PagesSubmitted: January 5, 2010 -
In Memorium
In Memorium When I wake up, my contacts were drying out slightly, casting a blurry edge around everything I looked at out the window. Slava’s grey Volvo is bouncing around the street, trying to avoid the potholes that loomed up from the asphalt. Potholes in Belarus take on a life of their own, and appear out of nowhere, sometimes forcing people to abandon their cars because they cannot get out of them. “Where are
Rating:Essay Length: 2,823 Words / 12 PagesSubmitted: November 10, 2009