w w ap eP m e tr .X w om .c s er UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *9505164189* 0653/03 COMBINED SCIENCE May/June 2007 Paper 3 (Extended) 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen
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odor ventures it’s way into my nose my immediate reaction is to flee the premises. Thankfully‚ when I opened the heavy oak doors and stepped into the restaurant my nose was instantly filled with the smell of a sizzling steak as a young waiter whisked past me carrying it in his palm. After our hostess had seated us in a squishy booth that reminded me of beanbag‚ I took note of the raw smell of Applebee’s. The best and most accurate way to describe it would be to parallel it to the smell of my grandmother’s
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Abstract This experiment was designed to answer the question does temperature affect the amount of osmosis? The hypothesis predicted was that the higher the temperature the more osmosis would occur‚ but too high the osmosis would halt due to enzyme and substrate overheating and losing shape. After research and class time it was concluded that osmosis is a passive transport and would not require energy or enzymes due to it going from high to low concentrations with the gradient
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the sister planet to the Earth. It is called this because it closely resembles the Earth’s mass‚ density and diameter. The only thing different is that Venus is shrouded in thick clouds that completely hide the surface of the planet. The surface temperature is also much warmer than that of Earth. Venus completes one revolution around the sun in 224.7 days. This makes the Venusian day equal to 117 earth days. It is thought that this slow rotation may be the reason why Venus has no magnetic field. The
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When a beetroot cell is exposed to various kinds of temperatures‚ its plasma membrane is affected and may change in structure resulting in the leaking of betacyanin. If the temperature changes‚ then I would expect to observe that there would be a change in the concentration of betacyanin that has leaked from a beetroot cell. In specific‚ at high temperatures‚ the phospholipids that make up the plasma membrane of the beet root cell become progressively more destabilized causing them to transform into
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Appreciate how a physical property that varies with temperature may be used for the measurement of temperature‚ and state examples of such properties. Recognise the need for and identify fixed points. Describe the structure and action of liquid-in-glass thermometers. Demonstrate understanding of sensitivity‚ range and linearity. Describe the structure of a thermocouple and show understanding of its use for measuring high temperatures and those that vary rapidly. 1. A clinical thermometer
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In the book “Separate Pasts”‚ by Melton Mclaurin he recalls his memories of growing up in his hometown of Wade‚ North Carolina. McLaurin writes his interactions with the black community and observes the segregated lifestyle of blacks and whites. He honestly recalls his boyhood during the 1950’s‚ an era when segregation existed unchallenged in the rural south‚ which was a time when racism was a day-to-day rule. McLaurin honestly explores the relationships he had with his fellow white peers as well
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Memorandum To: Urban Planning Department From: Name Subject: Rise of Temperature in Urcity Date: Introduction Agricultural areas all over the world are feeling the effects of suburb expansion. The cities growth is having an effect on the ability of land‚ water‚ and animals. With city growth will create problems such as climate‚ land‚ and geographical changes (Hillel‚ 1995). Critical Findings The agricultural areas of UrCity are being forced further out into the desert basin due
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the Past Simple Tense? We use the past simple tense to talk about an action or a situation - an event - in the past. The event can be short or long. Here are some short events with the past simple tense: The car exploded at 9.30am yesterday. She went to the door. We did not hear the telephone. Did you see that car? | past | present | future | | | | | The action is in the past. | | | Here are some long events with the past simple tense: I lived in Bangkok for 10 years. The
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changes in enzyme function? Objective The objective of this experiment is to observe if changes in temperature will cause a disruption in enzyme function. Hypothesis If we add and boil enzyme in L-Dopa‚ then the color will become darker because the temperature will denature some of the enzymes. Variables Independent: Temperature Dependent: Color change Control: Time‚ Room temperature Jobs We were assigned different jobs to perform the experiment Janelee had two jobs because we were
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