TEACHER’S GUIDE CHEMISTRY TOPIC: OBSERVATIONS AND EXPERIMENTS USEFUL TIPS: Student’s experiments can be done in groups. Groups can be given different mixtures. Each group then carry out their own experiment‚ makes a write up of their procedure and presents to the rest of the class together with the samples obtained. UNIT 1: MIXTURES AND PURE SUBSTANCES This unit is suitable for senior one (S1) BRIEF DESCRIPTION OF THE UNIT: This unit deals with: • Methods of separating
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is Poverty?” Content a. How would you define the author’s purpose? Besides paragraph 15‚ in what parts of the essay is that purpose most apparent? I would define the author’s purpose is to express the life of a poor person and the views of others towards a poor individual. Besides paragraph 15‚ Parker’s purpose is most apparent in paragraph two and paragraph six. b. Why does the speaker address her audience directly‚ especially in paragraphs 4 and 10? How would you describe that audience
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CHAPTER 6 MECHANICAL-PHYSICAL SEPARATION PROCESSES Introduction Separation Processes Many chemical processes materials and biological substances occur as mixtures of different components in the gas‚ liquid‚ or solid phase. In order to separate or remove one or more of the component from its original mixture‚ it must be contacted with another phase. The two-phase pair can be gas-liquid‚ gas-solid‚ liquid‚ or liquid-solid. Absorption When the two contacting phases are a gas and a liquid
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Baddeley and Hitch (1974) developed an alternative model of short-term memory which they called the working memory model. The working memory model consists of four components. The central executive which controls and co-ordinates the operation of two subsystems‚ the phonological loop and the visuo-spatial sketchpad. The central executive controls attention and coordinates the actions of the other components‚ it can briefly store information‚ but has a limited capacity. The phonological loop consists
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be a unitary store. This means that due to its single store it has no subsystems‚ unlike the Working Memory Model which has many subsystems. This proves that the Working Memory is not a unitary store. Working Memory is STM. In contrast to the Multi-Store Model‚ where all the information goes to one single store (Unitary store)‚ there are different systems for the different types of information. Working Memory consists of the Central Executive‚ The Visuo-Spatial Sketch Pad‚ The Episodic Buffer and
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1. The Balance of Power: Hans Morgenthau a. Balance of power- how power is distributed. i. As a policy aimed at a certain state of affairs ii. As an actual state of affairs iii. As an approximately equal distribution of power iv. As any distribution of power b. The weaker states will balance against the stronger states i. Comparatively‚ a weak state aligning with another weak state will have more influence‚ b/c the weaker state has a great need for assistance. ii. A weak state
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The Working Memory Model (WMM) is a theory by Baddeley and Hitch in 1974. The theory replaces the idea that there is a single Short Term Memory (STM) from Atkinson and Shiffrin (1968)‚ it suggests that the STM is a flexible multi-component system. The WMM suggests that the STM is controlled by the Central Executive (CE) which controls attention‚ planning and synthesising information. The Central Executive is a flexible system which means it can process audio‚ visual and sound information‚ it also
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Working Hard Today for a Better Tomorrow It is the beginning of October and everywhere you turn‚ there are little pink ribbons. You continuously ask yourself‚ “What’s the meaning of this?” Do not feel discouraged because all around the world‚ there are thousands of people that do not know the true meaning to these little pink ribbons. Some think that it is a new fashion statement; many think it’s the person’s favorite color. In reality‚ these ribbons are more than a fashion statement and have a
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GALLARDO‚ Raniel M. August 7‚ 2013 4POl3 POL 282 Land Power vs. Sea Power in the Context of Preservation of Balance of Power Based on realist perspective‚ geography proves to be a very essential tool in understanding‚ analyzing‚ and explaining phenomena in international politics. It is considered one of the factors that shape the behaviour of states when it comes to dealing with different global issues‚ most especially if these will affect their respective interests. Securing
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Explain the principle of the separation of powers found in the US Constitution. The separation of powers is the main underlying principle of the US Constitution whereby political power is distributed amongst the three branches of government – the legislature‚ the executive and the judiciary. The branches act both independently and interdependently. The idea was originally of French political thinker Baron de Montesquieu‚ it was then incorporated by the Founding Fathers into the 1787 codified document
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