Purpose To explore transport of materials in three semi-permeable membranes: dialysis tubing‚ eggs‚ and onion cells. Background Information 1. Diffusion is the movement of solutes from high to low concentration. Osmosis is the movement of water from low to high concentration. Both refer to movement in/out of a cell‚ but osmosis refers specifically to water. 2. Isotonic‚ hypertonic‚ and hypotonic all refer to the comparison of concentrations of solutes in verses out of the cell. Isotonic is
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® keep it simple science Copying is permitted according to the Site Licence Conditions only Preliminary Physics Topic 4 THE COSMIC ENGINE What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. THE HISTORY OF OUR UNDERSTANDING OF THE UNIVERSE 2. HOW THE UNIVERSE BEGAN (THE "BIG BANG" THEORY) 3. LIFE-CYCLES OF THE STARS 4. ENERGY FROM THE SUN‚ & ITS EFFECTS ON US but first‚ let’s revise... The Structure of the Universe The EARTH
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basketball confrontation of focus. At present‚ the domestic and international factors affect the basketball shooting‚ mainly for heart‚ Management and technical action‚ and take full advantage of the principles of mechanics to study less. From the physics point of view‚ using principles of mechanics and impact analysis‚ The Hit Rate factors‚ in order to explore an effective way to improve the shooting‚ in order to improve the rational knowledge of the athletes on the shooting process‚ guidance basket
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09-17-10 Period 5 The Broken Eggs POW #1 1. Problem Statement: A farmer has some eggs in a cart‚ and is going to market them. She accidently breaks every egg. She doesn’t remember how many she had‚ but she remembers some things. She knows that when she put them in groups of 2‚ 3‚ 4‚ 5 and 6‚ there was one egg left over. When she put them in groups of 13 no eggs were left over. You need to find out how many eggs there are in total. 2. Process: I first thought
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Broken Eggs By Randall.KA farmer went to the market and broke all of her eggs! She needed to figure out how many eggs she had. She put her eggs in different groups. She put them in groups of 2‚ 3‚ 4‚ 5‚ 6‚ and 7. When she tried to put the eggs in groups 2 through 6 she had one egg left over‚ but when she put the eggs into groups of seven she didn’t have any left over. How many eggs did she have? Are there more than one possibility?When we attempted to find the amount of eggs she had‚ we took
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Version 1.0 General Certificate of Education (A-level) January 2012 Physics A (Specification 2450) PHYA2 Unit 2: Mechanics‚ materials and waves Final Mark Scheme Mark schemes are prepared by the Principal Examiner and considered‚ together with the relevant questions‚ by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all examiners participate in and is the scheme which was used by them in this examination. The standardisation
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opportunity to achieve success and prosperity through hard work‚ determination‚ and initiative”‚ but the sad part about the American dream is sometimes that’s all it lives up to be. This seems to be the case in the short story “The Egg”. In this short story‚ “The Egg”‚ the egg seems to be an image more than a title. It endorses the idea for a chance at a new life and a chance to get rich. In this story the mother seems to be the one picking at the idea of this life‚ she does so by telling the father
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CGHS Physics Trial HSC Examination 2008 Page 1 Student number ……………………….. Teacher …………………………………….. Cheltenham Girls High School 2008 Higher School Certificate Trial examination Physics TASK WEIGHTING: 35% General Instructions • Reading time – 5 minutes • Working time – 3 hours • Write using black or blue pen • Draw diagrams using pencil • Board-approved calculators may be used • A data-sheet‚ formulae sheets and Periodic Table are provided at the back of this paper Total marks –
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Module 2 Honors Extension: The Physics in Swimming Physics is defined as the branch of science concerning the study of matter and energy and the interactions between the two. Physics tries to explain the nature of the world around us‚ how things happen and why. Swimming displays some physical properties‚ such as buoyancy‚ drag resistance and propulsion. We swimmers are at a constant battle to stay afloat‚ while fighting through the water and propelling ourselves forward‚ and we do so using technique
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University of the Philippines College of Science PHYSICS 72 SET A Second Semester 2010-2011 First Long Examination National Institute of Physics 2nd Sem AY 2010-2011 Physics 72 INSTRUCTIONS: Choose the best answer and shade the corresponding circle on your answer sheet. To change your answer‚ cross-out and sign your original answer and then shade your new answer. No computational devices allowed (e.g. calculators‚ mobile phones). Following instructions is part of the exam. Useful
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