[Type text] [Type text] [Type text] _An experiment on the effect of surface area to volume ratio on the rate of osmosis of Solanum tuberosum L._ BACKGROUND A cell needs to perform diffusion in order to survive. Substances‚ including water‚ ions‚ and molecules that are required for cellular activities‚ can enter and leave cells by a passive process such as diffusion. Diffusion is random movement of molecules in a net direction from a region of higher concentration to a region of lower concentration
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Controlled Assessment: Osmosis of a Potato [pic] Osmosis: Osmosis is the movement of substances through a partially/semi permeable membrane from an area of high concentration to an area of low concentration to balance of the concentration of the two sides. Biological membranes do allow water to pass through‚ but water will have no net movement unless osmosis takes place. Preliminary Method I have chosen to investigate the factor of the weight of potato strips after set amounts of time
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YIRI- KOKO STYLE: West African Music Features of West African Music: * Call and Response * Musical knowledge is passed down through oral tradition * Improvised melodies * Repetition (ostinato) * Layered‚ polyrhythmic textures. * Cyclic structures CONTEXT * The country from which this piece comes from is Burkina Faso‚ West Africa. * Koko is a group composing of 6 musicians‚ led by Madou Koné‚ the singer and balafon player. * Yiri is the
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Peripetie- Schoenberg STYLE: Expressionism Features of expressionism: * Atonal (all notes have equal importance) * Expresses one intense emotional * Full use of the pitch range of instruments. * Timbre is regarded to be just as important as melody * Extremes in dynamics * Pieces are quite short CONTEXT: * Schoenberg was an Austrian composer who founded the Second Viennese School- a group of composers (including Berg and Webern‚ who were taught by Schoenberg
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Read Source 1‚ the online travel article called Rafting on the Grand Canyon by Elisabeth Hyde. 1) What do you learn from Elisabeth Hyde’s article about where she has been and what she has been doing? From the article‚ we learn that Elisabeth Hyde went rafting on a ’13 day‚ 225-mile trip down the Colorado River through the Grand Canyon.’ She describes the trip as a ‘Disneyland’ like experience with ’a white-knuckle‚ roller-coaster ride’. Hyde also comments on how she found it quite scary but ‘exhilarating’
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Essay Notes • Nixon sought to gain peace in Vietnam & set up a withdrawal of the troops (yes) • Kissinger claimed that the majority of the population were pro government & against protest(no)- the population turned against the war in an overwhelming majority • Post troop withdrawal-larger protest called mobilization(yes) -Due to the Us being involved in bombing campaigns in Cambodia outraged people • Black Americans & students were the majority of anti-war protestors (yes/no)-
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Treaty of St Germain • When Austria agreed to the breakup of the Habsburg Empire. • Hungary‚ Poland‚ Czechoslovakia as independent countries • Austrian army limited to 30‚000 • Pay reparations Treat of Neuilly • Signed with Bulgaria • Bulgaria lost land to Greece but gained some from Turkey • $400 million reparations • 20‚000 army size Treaty of Trianon The Treaty of Trianon with Hungary in 1920 took land from Hungary and gave it to the new nation-states. Transylvania was given
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PEEFWE’S ON MY FISRT SONNE Throughout On My First Sonne we are able to see that Jonson is trying to find the positive aspects of his son’s death and is looking at it in a positive way. Jonson would actually like to stop his emotions‚ to stop feeling like a father: “O‚ could I loose all father‚ now”‚ i.e. if only I could give up feeling this terrible grief for my son – but‚ of course‚ he cannot. If he could stop feeling like a father‚ then he might be able to see some faintly positive side to what
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Chalcones were synthesized according to the previously described methodology (26). A substituted acetophenone (5 mmol) and benzaldehyde (5 mmol) were dissolved in dry methanol (30 ml) and catalytic amount of sodium hydroxide was added to the above solution. The reaction mixture was stirred for 30 min and then neutralized with 1 N HCl. The products were purified by recrystallization from ethyl alcohol and water. The synthetic procedure and reaction conditions for chalcones are illustrated in scheme
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WJEC GCSE English – Writing to Describe Every year‚ the descriptive writing task in Section B of Paper 1 is where students lose the most marks in their English exam. It is therefore a good idea to practice descriptive writing so that this does not happen to you. Furthermore‚ quality descriptive writing can be used as coursework. You are therefore improving your coursework folder at the same time as you are learning how to impress the examiner. Below is a selection of descriptive writing tasks
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