Oxygen Essay

767 words - 3 pages

EASY Science Fair Project for grade school..... -Oxygen, symbol O, colorless, odorless, tasteless, slightly magnetic gaseous element. On earth, oxygen is more abundant than any other element. Oxygen was discovered in 1774 by the British chemist Joseph Priestley and, independently, by the Swedish chemist Carl Wilhelm Scheele; it was shown to be an elemental gas by the French chemist Antoine Laurent Lavoisier in his classic experiments on combustion.Large amounts of oxygen are used in high-temperature welding torches, in which a mixture of oxygen and another gas produces a flame of much higher temperature than is obtained by burning gases in air. Oxygen is administered to patients whose breathing is impaired and also to people in aircraft flying at high altitudes, where the poor oxygen concentration cannot support normal respiration. Oxygen-enriched air is used in open-hearth furnaces for steel manufacture.Most of the oxygen produced in the United States is used to make a mixture of carbon monoxide and hydrogen called synthesis gas, used for the synthesis of methanol and ammonia. High-purity oxygen is used also in the metal-fabrication industries; in liquid form it is of great importance as a propellant for guided missiles and rockets2.I have chosen the element 'Oxygen' because without Oxygen, human beings would not be able to live. Oxygen is probably the single most important element in the world as we know it. With out Oxygen we would not breath, have water, eat plants.Oxygen's Electron configuration is 1S2 + 2S2 + 2P4, it's electron dot symbol is: .Gaseous oxygen can be condensed to a pale blue liquid that is strongly magnetic. Pale blue solid oxygen is produced by compressing the liquid. The atomic weight of oxygen is 15.9994.Oxygen composes 21 percent by volume or 23.15 percent by weight of the atmosphere; 85.8 percent by weight of the oceans and, as a constituent of most rocks and minerals, 46.7 percent by weight of the solid crust of the earth. Oxygen comprises 60 percent of the human body. It is a constituent of all living tissues; almost all plants and animals, including all humans, require oxygen, in the free or combined state, to maintain life.3Three structural forms of oxygen are known: ordinary oxygen, containing two atoms per molecule, formula O2; ozone, containing three atoms per molecule, formula...

Find Another Essay On Oxygen

Ventilation and Oxygen consumption Essay

481 words - 2 pages Ventilation and Oxygen consumptionProcedure:We measured the ventillation metabolism of the fish at two different temperatures: (25 C) and (15 C). For each fish,we prepared a 250 ml jar by filling it half full with water from the aquarium in which the fish was housed.we transfered the fish from its weighing beaker to the jar adding sufficient water to now fill the jar to about 80% of its capacity.We placed the jar in the appropiate water bath. We

Leaf Color vs Oxygen Output Essay

788 words - 4 pages Leaf color vs. Oxygen Output There are many different types of plants all over the world. Plants provide human and animals oxygen. Whether it lives under the ocean or on land, everything breathes oxygen in every shape and form. Fish take the oxygen from the water. Humans breathe oxygen into their lungs. And then Carbon Dioxide (CO2) is breathed out. If one color leaf produces more oxygen than another why is more oxygen produced? To

Faster Dissolved Oxygen Test Kit

3381 words - 14 pages EASY Science Fair Project for grade school..... -page 21PurposeThe purpose of my project is to determine if there is any significantdifference in dissolved oxygen (DO) levels as measured by the traditionalHACH® method or the newly developed CHEMets® test kit under typical fieldconditions.HypothesisMy hypothesis is that there is no significant difference in dissolved oxygen(DO) levels as measured by the traditional HACH® method or the

Information on maximal oxygen uptake

525 words - 2 pages According to tortora (2000)"Maximal oxygen uptake can be defined as the maximal amount of oxygenthat can be taken in, transported and consumed by the working muscles during maximal exercise. Those who are more fit have higher VO2 max values and can exercise more intensely than those who are not as well conditioned". (p211)When exercise commences the uptake of oxygen rises rapidly during the first few minutes of exercise. If you are doing steady

The Oxygen Effect in Radiobiology

3268 words - 13 pages The oxygen effect plays a great role in the treatment and diagnosis of cancers and in imaging. As will be shown, it is a complex issue with many different facets. There is no clear, concrete evidence for even the most logical and well known theories, which have not always been as such. New evidence arises quickly and is contested just as fast, leading to great debate, but also to great revelations into the true nature of an effect as complicated

Low Oxygen Training in High Altitudes

612 words - 3 pages Many people have heard of low-oxygen training or high altitude training before, but probably do not know all that much about. This type of training to have an advantage in competitions is very well known amongst endurance athletes, specifically runners. Training in low-oxygen situation for short term will reap benefits for almost any athlete. Training at high altitudes is rewarding for athletes because it forces your body to make changes

Myocardial Ischemia: The lack of Oxygen

2113 words - 8 pages Angina is chest pain which results from inadequate oxygen flow to the myocardium. If the demand for myocardial oxygen surpasses the ability of the coronary arteries to provide the heart with oxygen, myocardial ischemia happens. Angina is the clinical manifestation of reversible myocardial ischemia caused by either an increased demand for oxygen or a decreased supply of oxygen that can lead to myocardial ischemia (Lewis et al., 2010). Angina is

Determination of Maximal Oxygen Consumption Lab Report

1496 words - 6 pages DETERMINATION OF MAXIMAL OXYGEN CONSUMPTION (VO2MAX) LAB REPORT Camilla Hopkins Texas Woman’s University Introduction Background: In this lab, we explored the theory of maximal oxygen consumption. “Maximal oxygen uptake (VO2max) is defined as the highest rate at which oxygen can be taken up and utilized by the body during severe exercise” (Bassett and Howley, 2000). VO2max is measured in millimeters of O2 consumed per kilogram of

Yawning: It Isn't About Oxygen Anymore

1660 words - 7 pages Yawning: It Isn't About Oxygen Anymore Have you ever wondered why yawns are contagious; have you ever been in class and seen someone across the room yawn and found yourself following along? Have you ever been reading a book and, upon coming across a yawning character, been moved to stretch out your own face muscles? Most likely these things have happened to almost everyone more times than they can remember. I cannot tell you how many times

Adaptations of the Placenta and Foetus to Improve Oxygen Availability

1278 words - 5 pages form of oxygen, glucose and other substances whilst excreting waste products such as carbon dioxide. The placenta and foetus feature many adaptations to ensure the most efficient gas exchange and to ensure high oxygen availability to the foetus . Gas exchange across the placental blood-blood barrier is dependent on many factors such as interhaemal barrier thickness, the surface area of exchange and the concentration gradient of the gases, among

Analysis of the Oxygen Group on the Periodic Table

2223 words - 9 pages I plan to educate those who read this paper on what they might not know of a few of our elements. I will tell you what I have learned over the oxygen group on the elemental table. I will talk about Oxygen, Sulfur, Selenium, Tellurium, and last but not least Polonium. These elements have changed our way of life and history in ways you might not know. We are surrounded by these elements in our daily life and they make us the way we are. I hope to

Similar Essays

Oxygen Essay

1525 words - 6 pages What is Oxygen? Oxygen is part of the air we breathe. All body tissues and organs must have oxygen to live. In people with lung disease, the oxygen supply to the body is poor.What Does Oxygen Do? If the oxygen level of the blood is low, extra oxygen may: 路 牋牋牋牋Help prevent a strain on your heart.路 牋牋牋牋Improve activity.路 牋牋牋牋Decrease fatigue

Oxygen Essay

2603 words - 10 pages Oxygen and its compounds play a key role in many of the important processes of life and industry. Oxygen in the biosphere is essential in the processes of respiration and metabolism, the means by which animals derive the energy needed to sustain life. Furthermore, oxygen is the most abundant element at the surface of the Earth. In combined form it is found in ores, earths, rocks, and gemstones, as well as in all living organisms.Oxygen is a

Oxygen Therapy Essay

4130 words - 17 pages Oxygen Therapy Oxygen therapy is quickly becoming one of the most controversial, yet effective forms of alternative medicine to enter the medical spotlight as the turn of the millennium approaches. It has many potential uses, ranging from a means of headache relief to a possible cure for AIDS and cancer, and the treatments seem simple and inexpensive. Oxygen therapy, however, remains a sketchy area in the medical community. Despite all the

Oxygen, Oxygen Radicals And Oxidative Stress

1081 words - 5 pages Oxygen supply to the retina The retina is one of the most metabolically active and high energy demand tissue in the body, which puts it under a persistent demand for a regular supply of oxygen to meet its metabolic needs (1, 2). The major blood supply to the retina is the central retinal artery that is derived from the ophthalmic artery. The ophthalmic artery is branched from the internal carotid artery and goes along the optic nerve (). Oxygen