observe the osmosis reaction in a potato with salt and water. In cooking cooks will soak their cut potato’s in water if they will not use them immediately. This allows the potato’s to be used later without turning color. The experiment shows the flow of water through the membranes of the potato with salt over a period of four hours. II. Objective: The reaction of the potato to the side submerged in water and the half excavated with salt. III. Raw Materials: Potato‚ Salt‚ Water‚ clear container‚
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diffusion through potato core in different concentration (viable) : The concentration of solution in a solution will affect the movement of water across potato cell membrane Material: Potato core Sucrose solution (0.2‚0.4‚0.6‚0.8‚1.0) Electronic Balane Test tube and rack Scalpel Plastic Weighing tray Cork Borers Method: Day 1 use you cork borers to bore 6 vertical hole on your potato. remove the potato cylinders from cork borers. take the potato cylinders
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THE IRISH POTATO FAMINE Pre-Famine History The potato was introduced to Europe sometime in the 16th century. There are many theories on how it arrived‚ but the one with the most credibility is from a case study done by Theresa Purcell. She explains how the white potato‚ also known as the Irish potato‚ originated in the Andean Mountains and was brought to Europe by the Spaniards. The potato was originally classified in the same family as the poisonous nightshade so people refrained from eating
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CHAPTER - 1 INTRODUCTION TO BATTERIES An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. Since the invention of the first battery in 1800 by Alessandro Volta‚ batteries have become a common power source for many household and industrial applications. Batteries are represented symbolically as follows Fig. 1(a) Symbolic view Fig.1(b)conventional battery Electrons flow from the negative terminal towards
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In the early 1800s life in Ireland wasn’t easy‚ Irish citizens got by day to day by farming and relying on the potato. The potato was their main source of food and money. With out the potato the Irish would have nothing. No one was prepared for what was about to happen in 1845‚ the beginning of the Great Irish Potato Famine. The Irish Potato Famine was the worst tragedy in the history of Ireland. The outcome of the famine would result in hundreds of thousands dead‚ an failure of the economy
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ACID) AS ALTERNATIVE BATTERY Battery or more precisely‚ a cell – is a device in which the reaction between two substances can be made to occur in such a way that some of the chemical energy is converted to useful electricity. Since its invention‚ the battery has become the most common power source for many household and industrial applications. There are many ways to construct a battery‚ as well as ways to control its generated output. This Home-made Vinegar Battery is a battery that is constructed
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Division of City Schools City of Mandaluyong Science High School E. Pantaleon St. Hulo‚ Mandaluyong City BLACK MIX FROM ALKALINE BATTERIES AS PIGMENT FOR THE MANUFACTURE OF INKJET PRINTER-FRIENDLY INK Submitted in partial fulfilment of the requirements in Research II By Psalm Israel Rendon Hazel A. Lunas Diane Clarisse Ortega IV-Chlorine SY 2011 -2012 September 2011 TABLE OF CONTENTS TITLE PAGE.........................................................................
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Electrical Battery Model for Use in Dynamic Electric Vehicle Simulations Ryan C. Kroeze‚ Philip T. Krein University of Illinois at Urbana-Champaign Department of Electrical and Computer Engineering 1406 W. Green St. Urbana‚ IL 61801 Tel.: 217-333-6592‚ Fax: 217-333-1162 Email: rkroeze2@uiuc.edu‚ krein@uiuc.edu Abstract - Simulation of electric vehicles‚ hybrid electric vehicles‚ and plug-in hybrid electric vehicles over driving schedules within a full dynamic hybrid and electric vehicle simulator
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Making a Potato Powered Light Bulb Materials: A large potato Two pennies Two zinc-plated nails or screws Three pieces of copper wire A very small light bulb or LED light 1) Get a potato and cut it in half. Then make a small slit in each half just big enough to put a penny into. 2) Cut two pieces of copper wire and wrap one around one of the pennies a few times‚ and wrap the other one around the other penny a few times as well. 3) Take a third piece of copper
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variables are the potato and onions. The dependent variable is the variable whose value is measured to determine the extent of the effect of another variable to it‚ as in an experiment. In osmosis lab‚ the dependent variable is the length of the potato. The controlled variables are the amount of water‚ amount of salt‚ and the size of the potato. If the potato is placed in a higher salt concentration‚ then the potato will decrease its size. We started the lab by cutting the potato core length (44
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