2012-2013 Winter Break Homework Packet Prince George’s County Public Schools Reading/English Language Arts Grade 9 1 GRADE 9 WINTER BREAK READING HOMEWORK PACKET In Preparation for the Maryland High School Assessment‚ PSAT‚ and SAT DIRECTIONS: The enclosed activities are to be completed by your child during the Winter Break and he/she is encouraged to return it to his/her Reading/English Language Arts teacher upon return to school. Parents are encouraged to assist in the following ways:
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EFFECT OF CHANGES IN TEMPERATURE AND SDS CONCENTRATION ON THE STRUCTURE OF BEETROOT CELL MEMBRANES. Introduction Cellular Membranes or cell membranes are biological membranes that separate the interior of a cell from the outside environment. Cell membranes are selectively permeable to ions and some molecules and control the movement of substances in and out of the cell. (Danyk‚ 2013/14) Cell membranes separate and organize chemicals and reactions within cells by allowing selective passage
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Experiment 7 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction: The student will perform the experiment in order to find the percent yield by using the theoretical value found using the balanced equation for sodium carbonate as well as sodium bicarbonate. The objective is to stabilize the substances by titrations and finding the percent yield when all the data is collected. The purpose of this procedure is so that the student will get better understanding of stoichiometry
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percentage by mass of water in Epson salt? DISCUSSION- When a crystal forms from water solutions‚ it takes a certain amount of water as part of the crystalline structures. The water is not covalently bonded to the host molecule or ion. Water is taken up in definite proportion in relation to the mass of the crystalline structure. This water that is trapped inside the hydrated solid structure is called water of crystallization or water of hydration. A salt with associated water of crystallization
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Affects of the Holocaust Our world has gone through many wars. But there is one war‚ in particular‚ that has changed the lives of thousands of people: World War II. This war brought out the worst in many‚ especially Adolf Hitler; who believed the war was a success because of how many Jews he had massacred. Hitler ’s goal was to make a pure race of people mainly with blonde hair and blue eyes; everyone else‚ the Jewish race‚ sick people‚ and disabled people were to be removed‚ erased‚ executed
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find out the concentration of the sulphuric acid in my experiment. I will do this by titrating the sulphuric acid with sodium carbonate. H2SO4 + Na2CO3 à Na2SO4 + H2O + CO2 Acid + Alkali à Salt + Water + Carbon dioxide Ratio of sulphuric acid to sodium carbonate: H2SO4 : Na2CO3 1 : 1 Concentration of sulphuric acid: H2SO4 is approximately 0.05 - 0.15 moldm-3 The average concentration of the sulphuric acid is: 0.05 + 0.15 = 0.1 moldm-3 2 Concentration (moldm-3) = concentration (g dm-3) Molar
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Topic: Death/ Concentration Camps I chose this topic because I felt like I would be really interested in it. I had already started to research in other classes and I knew that this topic would suit me well. I also thought that there would be a lot of information on it; therefore it would be easy to research. Essential Question: What were the main aspects of the Death/Concentration Camps? Research questions: How many people were affected by the camps? In 1933‚ there were approximately nine million
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The Power of Success The Long March of Mao Zedong and the Salt March by Gandhi have many similarities yet many differences. Both historic marches were similar in that they were started by men who wanted to change their country and went on to have great influence and power in their country. Both marches were similar in that they involved many people and were unconventional ways of seeking power and change. However‚ the marches were different because one was violent and the other was peaceful.
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experiment‚ the blood glucose concentration for Patient A is 5.6 mmol/L(Refer to Table 1). The blood glucose level for Patient A is normal as 5.6mmol/L is in the normal range. Urine sample from Patient A was tested and it is shown that there was no glucose and sodium present. The results showed that Patient A is healthy and could act as a control in this investigation. Secondly‚ patient B is suspected to suffer from diabetes mellitus. The blood glucose concentration for Patient B is 111mmol/L (Refer
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Salt Sugar Fat is a book written by Michael Moss‚ to inform the audience of the effects of salts‚ sugars and fats on the human race when it is found in foods consumed everyday. Parts of the brain and stimulants such as the bliss point are introduced to inform the reader just how these substances can stimulate the body during the consumption of foods. Large food corporations are brought under fire throughout most of the book as well. The main argument of the book written by Moss is that salt‚ sugar
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