Steps of The Scientific Method The Question Your science fair project starts with a question. This might be based on an observation you have made or a particular topic that interests you. Think what you hope to discover during your investigation‚ what question would you like to answer? Your question needs to be about something you can measure and will typically start with words such as what‚ when‚ where‚ how or why. Background Research Talk to your science teacher and use resources such as books
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endothermic reaction happened everywhere around us. Basically exothermic and endothermic reaction is transfer energy to the surroundings and take in energy from the surroundings (BBC GCSE bitesize). If the reaction forward ，then is exothermic.If the reaction is the backwards ‚then is endothermic. When a reaction take place‚ the energy started to transfer from different object to the surroundings or take away energy from the surroundings. When temperature started to change. Exothermic Reaction An exothermic
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Chapter 12 The Second War for Independence and the Upsurge of Nationalism‚ 1812–1824 1. A Scary War with Britain (pp. 233–240) a. What do the authors say at the outset is the “supreme lesson” of the War of 1812? The leading a divided and apathetic people into war is a bad idea b. For two years‚ the Americans and British fought to a standstill in Canada. What event in Europe in 1814 allowed the British to concentrate all their forces in America? Napoleons power was destroyed
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U3.3- OD Seven Steps MGMT-568 Tarleton State University Dr. Dulin 16 October 2008 Organizational Development (OD) programs follow a logical progression of events- a series of phases that unfolds over time; an important part of managing an OD program as well is to execute each phase well (French & Bell‚ 1999). Warner Burke describes seven phases of OD programs as; 1. Entry 2. Contracting 3. Diagnosing 4. Feedback 5. Planning Change
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1. Determine the order of the reaction A --> 2B + C from the following data obtained for [A] as a function of time. time | [A] | 0 min | 0.80 M | 8 mins | 0.60 M | 24 mins | 0.35 M | 40 mins | 0.20 M | ------------------------------------------------- Use diferential and half life. 2. Balance the equation below and determine the rate expression using the given data. Find k with units. N2 + H2 ---> NH3 (all gaseous) [N2] (mole/L) | [H2] (mole/L) | Initial Rate (mole/L /min)
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Genetically modified organisms- a step ahead or a step in the wrong direction? Paulina Langowska Genetically modified organisms‚ also known as GMO‚ are such organisms whose genetic material has been artificially changed using genetic engineering. Genetic engineering‚ to put it simply‚ is altering the DNA technology‚ using DNA molecules from various organisms and using this molecules to create a brand new set of genes. Then the set of genes is added to an organism’s genome. Below is shown an exchange
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determine the reaction time of the test participant and using the subtractive method identify the selection time and identification time of the participant. The experiments had one participant who participated in a total of 6 experiments; two experiments required a simple reaction with a single stimulus and 4 experiments that required a more complicated reaction. Keywords Subtractive method – the procedure of estimating the time it takes to perform various cognitive operations. Simple reaction – this
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on Tuesday‚ I attended an Alcoholics Anonymous (A.A.) meeting. The group of people who went to it was very diverse‚ of various ages‚ backgrounds‚ levels of recovery‚ experiences‚ but with one goal in common: to get sober for life (live a life alcohol-free) by realizing that there is something greater than themselves and they are not in control of themselves. Truly‚ the program seems to be a complex one that requires time (to go from step to step) and guidance from a sponsor that each attendee should
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Aldol In this preparative lab‚ an aldol (trans-p-anisalacetophenone) was produced from the reaction between p-anisaldehyde and acetophenone with the presence sodium hydroxide. The reaction also showed the importance of an enolate and the role it played in the mechanism. Sodium hydroxide acts as a catalyst in this experiment and is chosen because of its basic conditions and pH. The acetophenone carries an alpha hydrogen that has a pKa between 18 and 20. This alpha hydrogen is acidic because of its
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When I ask you to think about a mother‚ what do you think of? Most would think of their mother and all of the fond memories of their childhood. One thinks of nurturing‚ softness‚ loving‚ and selflessness. Now‚ if I was to ask you to think about a stepmother‚ what comes to mind? Most people think of cunning‚ crafty‚ conniving‚ selfishness‚ and wickedness. Have you ever thought about how the stepmother gets this bad wrap? As children we are practically brainwashed by Disney fairy
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