1. Sex Male Female 2. What is your age group? 11-12 13-14 15.16 3. Do you or any one of your school mates use indecent language during school hours? Yes No 4. Are you associated with any violent or inappropriate behaviour with any other students in the school that you attend? Yes No 5. Do you or any one of your school mates consume alcoholic beverages in school?
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Reaction: The documentary of Al Gore is very interesting‚ because it does not only give you information about global warming but also it will awaken you to take good care of our mother earth. It clearly showed the environmental conditions our planet is facing. Part of the reason why I like it was that Gore presents a powerful message that combines factual information‚ humor and‚ ultimately‚ hopes. I really like how Al Gore relates his life story with what was happening in the earth‚ especially global
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Controlled assessment- How concentration affects the rate of reaction between sodium thiosulfate and hydrochloric acid. SA): Strategy Scientific knowledge Sodium thiosulfate (Na2S2O3)‚ also spelled sodium thiosulphate‚ is a colourless crystalline compound that is more familiar as the pentahydrate‚Na2S2O3·5H2O‚ an efflorescent‚ monoclinic crystalline substance also called sodium hyposulfite or “hypo.” Sodium thiosulphate has a melting point of 48 degrees C. It is freely soluble in water. It contains
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Solar Energy Essay Fossil fuel comes from the earth‚ from the decomposition of dead living things underground. Fossil fuel is easy to get and is cheap‚ but fossil fuel takes millions of years to form and is not a renewable energy and it contains a large amount of carbon in it. There are some types of fossil fuel like; coal‚ natural gas and petroleum. Fossil Fuel makes electricity‚ motor oils and other things that are used in our daily lives. When fossil fuels are burnt‚ they produce heat‚ which
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Effects of Water Pollutions Water is important for the existence of life on earth. All organisms require it and aquatic plants and animals live their life in water. Water pollution occurs when you have toxins and pathogens present in water in dangerous amounts than permissible. One of the worst forms of pollution in the ecosystem is water pollution. When you hold a glass of water it may appear to be clean and clear. But the fact is there are millions of microscopic pollutants suspended
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Combustion of Alcohols Purpose: The purpose of this investigation is to use calorimetry to determine the molar enthalpy change in the combustion of each of a series of alcohols. Question: How do the enthalpies of combustion change as the alcohol molecules become larger? Prediction: I predict the bigger the molecule the more the energy will be released. Materials: On lab sheet Procedure: On lab sheet Observation: On other page Analysis: b) i) Ethanol – q=(100g)(4.18J/g/C)(25.5C) q=10659J
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Into thin Air by Jon Krakauer Research Topics Hypoxia “At 29‚028 feet up in the troposphere‚ so little oxygen was reaching my brain that my mental capacity was that of a slow child” (6). Lesser Peaks “To the South‚ where the sky had been perfectly clear just an hour earlier‚ a blanket of clouds now hid Purmori‚ Ama Dablam‚ and other lesser peaks surrounding Everest” (6). Oxygen Tanks “Wanting to conserve what-ever oxygen remained in the tank‚ I asked him to reach inside my backpack and
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WATER QUALITY AND CONTINMINANTION Introduction I. Body Paragraph #1 – Background~ Water quality is decided by assessing three classes of attributes: biological‚ chemical‚ and physical. There are criteria of water quality set for each of these three categories of properties. The standards for drinking water are developed by the Environmental Protection Agency (EPA)‚ World Health Organization (WHO) etc. All municipal (public) water supplies must be measured against these standards. Testing how
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2. Objectives The objectives of this experiment are to observe the keeping quality of some food products‚ study the various simple methods of moisture determinations using different drying method. And determine the water activity in some food samples such as biscuits‚ bread‚ flour and instant noodles by using water activity measurement machine. 3. Theory To determine the moisture content in the food‚ methods such as open dish method and infrared balance method are used. 3.1 Hypothesis
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Assignment Type: Individual Project Deliverable Length: 10–PowerPoint Slides Points Possible: 150 Due Date: 2/16/2013 11:59:59 PM CT You are between jobs and have decided to relocate to a city west of the Mississippi River‚ but you are unsure of what size or type of city you and your family can afford to live in. Choose 4 cities west of the Mississippi River‚ each of a different size‚ and research the housing prices for a 3-bedroom‚ 2-bath condo for each city. Determine how supply
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