Fireworks and What Makes Them Go Sparks! Colors! Things that go BOOM! Chemistry doesn’t get much better than this. Ever notice how minutes drag on for hours when you’re waiting for a fireworks show to begin? Everyone’s thinking the same thing: The sky is dark enough the hot dogs are all eaten…come on when are they going to start? Then the first rockets streak into the sky…Ooh! Aah! Yes‚ it was worth the wait. The birthplace of fireworks is generally recognized as China.
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1.1 Chemistry A. What Is Chemistry? * Because living and non-living things are made of matter‚ chemistry affects all aspects of life and most natural events. * Matter- is anything that has mass and occupies space. * Chemistry- is the study of the composition of matter and the changes that matter undergoes. B. Areas of Study * Five traditional areas of study are organic chemistry‚ inorganic chemistry‚ biochemistry‚ analytical chemistry‚ and physical chemistry. * Organic
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In the 18th Century Colonisation decimated Aboriginal communities with diseases‚ alcohol‚ and dispossession. In the 19th Century Australian colonies developed their own individual legislative mechanisms concerning child protection for their jurisdictions. In the late 19th to early 20th Century there was forced separation of Aboriginal children from their families under policies of assimilation this became known as ‘Stolen Generation.’ (Mary will be talking about) Also in the 20th Century‚ there
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Match and Water in a Glass Science Magic Trick Fun Trick with Fire and Water This is a simple and interesting science magic trick involving fire and water. All you need is water‚ a glass‚ a plate‚ and a couple of matches. Pour water into a plate‚ light a match in the center of the dish and cover it with a glass. The water will be drawn into the glass. Match and Water Trick Materials • plate • water • 2 wooden matches • a quarter or other large coin • colored water
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Data protection & security What is Data Protection and Security ? This is the protection of data such as database from accidental‚ unauthorised or malicious access Data Protection Act Data protection Act controls and monitors the way personal and customer information is been used by organisations. The Data Protection Act 1998 (DPA 1998) is an Act of the UK parliament that defines the ways in which peoples information is been handed. 8 Data Protection Act Principles • Data must be Processed
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by : Directorate of Education‚ Delhi SOME IMPORTANT REASONING BASED QUESTIONS OF ORGANIC CHEMISTRY 1. Chlorobenzene is less reactive than chloromethane. Ans. In chlorobenzene‚ each carbon atom of benzenering is sp2 hyridised and is electron withdrawing. Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane
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Management Fall Protection Reference Guide Subpart M & L – Systems & Scenarios Outline William Mackie 2/1/2013 Contents I. Fall Protection Systems a. Subpart M Systems 1926.502(b): Guardrail Systems 1926.502(c): Safety Net Systems 1926.502(d): Personal Fall Arrest Systems 1926.502(e): Positioning Device Systems 1926.502(f): Warning Line Systems 1926.502(g): Controlled Access Zones 1926.502(h): Safety Monitoring System 1926.502(i): Covers 1926.502(k): Fall Protection Plan b. Subpart
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: POWER SYSTEM PROTECTION LAB. PERFORMANCE DATE : 25.01.2010 SUBMISSION DATE : 13.02.2010 SUBMITTED TO : Mr. Shaikhul Arefin Khan. Lecturer‚ Department of EEE‚ Stamford University‚ Bangladesh. This report is Prepared on the base of Energypac study tour in Saver. POWER SYSTEM PROTECTION LAB (FINAL REPORT) OBJECTIVE: The objective of this course is to study the protection of power system
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Defining Environmental Crimes Environmental crime is a serious and growing concern at national as well as international level‚ and one which takes many different forms. Environmental crime in broad terms means an act which is committed with the intention of damaging or causing damage to the ecological and biological systems to ensure business or personal benefit. The types of acts commonly recognised as environmental crime are: pollution or other contamination of air‚ land and water; illegal discharge
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Environmental Fundamentals Laura Jackson Env/100 April 8‚ 2013 JOHN ENSWORTH Environmental Fundamentals Introduction Environmental science is defined as the study of the environment and the interconnecting systems it contains‚ furthermore‚ the way people interact with their natural surroundings and use natural resources (wise geek‚ 2013). Scientist in this field is highly interdisciplinary and extremely diverse‚ for example‚ a scientist might study volcanoes or climate change. This essay
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