Introduction The reason of this experiment was to identify the properties and effects of osmosis. Osmosis can be defined as the diffusion of water through a selectively permeable membrane. (Miller/Levine) Osmosis occurs when there is an area of higher and lower concentration. Osmosis is a type of diffusion. Diffusion is when molecules move from an area of higher concentration to an area of higher concentration. The three types of concentrations are hypotonic‚ hypertonic‚ and isotonic. When in comparison
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water when no fish is present. Then‚ measure the water with fish in it‚ increasing by 2 every time. Record the amount of fish and dissolved oxygen in a chart. When about 20 fish is reached‚ stop recording and put all the data into a line graph. Using a line graph will help see any patterns between dissolved oxygen and number of fish. 4.
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------------------------------------------------- ------------------------------------------------- Speed Speed is defined as a measure of the distance an object travels in a given length of time. The average speed of an object can be determined from the equation below: Thus‚ if a car travels 100 meters in 5 seconds its average speed can be calculated as; Average speed = 100/5 = 20 meters per second Average speed is used to give the speed of an object over a given interval of time‚ if
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Practice Name ___RaeAnne Phillips________________________________ Date __________ ▪ Save this file as a WORD document with a new name (LastNameGraph1) ▪ Use Create a Graph (http://nces.ed.gov/nceskids/graphing/) to graph the following data sets. ▪ Copy and paste the graphs AFTER each data set. ▪ Answer the questions AFTER each graph. ▪ Save Frequently! ▪ Email me (mruthenberg@findlaycityschools.org) the finished document. 1. Baby chickens‚ like all baby birds‚ require a constant source of
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Artist Reference and Response – Leonid Afremov Leonid Afremov (born 12 July 1955 in Vitebsk‚ Belarus) is a Russian–Israeli modern impressionistic artist who works mainly with a palette knife and oil paints. He works in very thick layers‚ and his exaggerated‚ intensified colours tend to merge and fuse together to create a dramatic scene or landscape. In these two images‚ he has contrasted light pale washes against harsh‚ bright and thick textures‚ such as some of the clouds in the landscape image
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Date(s) Event Key Figures Describe Significance / Results Feb 1945 Yalta Conference Roosevelt Chruchill Stalin Talked about Germany and E Europe after war Divide G and Berlin – lack of details Free elections in E Europe Vague and general Try Nazi war criminals Reparations to be paid but no details Important – not as important as Potsdam General agreement War still going on and need to show united front Poland stiking point August 1945 Postdam Conference Truman Stalin
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Essential Graphs for Microeconomics Basic Economic Concepts ( Production Possibilities Curve Nature & Functions of Product Markets ( Demand and Supply: Market clearing equilibrium (Floors and Ceilings (Consumer and Producer Surplus (Effect of Taxes Theory of the Firm (Short Run Cost (Long Run Cost
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| | | | | 420 | | | | | 450 | | | | | 480 | | | | | 510 | | | | | 540 | | | | | 570 | | | | | 600 | | | | | 630 | | | | | 660 | | | | | Make two graphs of your data. On one graph plot the data from the pure water. On the other graph plot the data from the salt solution. On both plot temperature on the y-axis and time on the x-axis. B. Record the freezing point of the pure water and the freezing point of the salt solution. Freezing
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Distance Time Graphs Definitions * Speed: Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time. * Velocity: Velocity is a vector quantity that refers to "the rate at which an object changes its position." When evaluating the velocity of an object‚ one must keep track of direction. It would not
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Examining Diffusion and Osmosis Introduction: Purpose: 1. To simulate and observe the diffusion of solutes and the osmosis of water through a semipermeable membrane through color change and sugar tests. 2. To speculate osmosis occurring in dialysis bags and potato cores by comparing percentage change in masses. Background information: Molecules are always in random‚ constant movement due to their kinetic energy. This causes the molecules of a cell to move around and bump into each other
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