particles either consist of particles that are either hot or cold. High temperature bodies‚ are often caused due to the high heat transfer‚ which is created by chemical reactions‚ nuclear reactions‚ electromagnetic dissipation‚ or mechanical dissipation. Heat is generally transferred between two different objects by radiation‚ conduction and convection. Heat is only passed on between objects‚ with the help of different temperatures. ("This Heat" in The Rough Guide to Rock (3rd ed.) edited by Peter Buckley
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That is where hydrogen fuel cells come into the picture. Rather than depending on a foreign countries oil‚ to provide fuel‚ businesses today should look to hydrogen as an alternative fuel source. The United States is too dependent on foreign oil. If something were to happen‚ like another war with the Middle East‚ we would not have any oil to power our cars or heat our homes. That’s why hydrogen is the answer. Everybody could make their own fuel for their country by creating hydrogen plants and buying
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AP Biology Dissolved Oxygen and Aquatic Primary Productivity Purpose: To measure and analyze the primary productivity of natural waters of laboratory cultures using screens to simulate the decrease of light with increasing depth. Background: Dissolved oxygen (DO) is how oxygen is measured. Oxygen is required in cellular respiration‚ so it is very important for aquatic life. When more oxygen is consumed than is produced‚ dissolved oxygen levels decline and some animals could die if they do not
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MAJENGO SECONDARY SCHOOL CHEMISTRY TEST FORM VI JULY 2013 TIME: 2 HOURS SECTION A Answer all questions 1. a) A coordination compound has a formula Co Cl3. 4NH3. It does not liberate ammonia but precipitates one mole of chloride ions with Ag No3. i. Give IUPAC name of the complex ii. Write it’s structural formula a) Give chemical tests to distinguish [Co Br (NH3) 5] S04 and [Co (NH3)5 SO4] Br 2. Give IVPAC Names of the following i. K2 [ptF6] ii
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homeostasis to regulate control systems such as body temperature‚ osmotic balance‚ blood pressure‚ blood glucose and respiratory gases in tissues. This report will focus on thermoregulation‚ which is the ability of an organism to keep its body temperature within certain boundaries‚ despite the fluctuating external environment. The purpose of thermoregulation is to balance thermal inputs and thermal losses in the body to maintain a core body temperature of approximately 36.7 degrees celsius‚ despite the
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These are the cells that transport oxygen in the blood from the lungs to the tissues. These cells also help transport some of the carbon dioxide from the tissues to the lungs. The main function of erythrocytes‚ namely oxygen transport‚ is carried out by the protein that makes up the majority of the protein composition of the cell‚ hemoglobin. We will also be looking at how hemoglobin delivers oxygen‚ and how many factors affect its affinity for oxygen. Lastly we will be looking at some
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GCSE Astronomy Controlled Assessment: B4 – Constellation Photography Design For my coursework I have chosen to attempt photography of three different constellations in the night sky. I will go out on three separate dates to take photos then select the best photographs to use for the analysis. I will then aim to identify colours and magnitudes of my photographed stars using comparisons with reference stars for which I have collected known magnitudes from official sources. Explanation of used
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Joseph Priestley was a famous scientist during the 18th century best known for is discovery of oxygen. He was born in Birstall‚ England on March 24‚ 1733. When Joseph was a boy he attended many different schools. He was sick very often when he was little this caused him to miss a lot of school. He began to learn to teach himself at home. This skill became very useful to him‚ as he got older. He then could very easily teach himself new concepts without a teacher. Then in 1752 Joseph began to attend
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substances catch fire at a different temperature. The lowest temperature at which a substance catch fire is called its ignition temperature. Combustible substances do not catch fire or burn as long as its temperature is lower than its ignition temperature. Now let me do an activity which tells you why reaching ignition temperature is necessary to burn an object. You know that paper catch fire with a flame. Let me
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Factual coursework - Joely Eyre It is debatable which of the articles in the Convention on the Rights of the Child is the most important. Perhaps it would be Freedom of expression‚ Freedom of thought‚ Freedom of conscience or Freedom of religion. These are all essential for the well-being and development of a child but what about article 28‚ the Right to education? Without an education‚ can a child really express their thoughts‚ understand their conscience or practise a religion? Only a balanced
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