The purpose of this experiment was to test the tonicity of potato cells. The potato cells were placed in different test tubes with water and were left there for 15 minutes. The percent change in mass is then used to determine if the cells lost or gained water‚ therefore determining the tonicity of the cell. Although it was a brief short time‚ the final results showed that the more water the potatoes were placed in‚ the more hypotonic the potato becomes. Tonicity is stated to be the state of a solution
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Seth Dennison and Jenna Snyder John Bryan Psychology of Gender 104 10/31/2012 Psychological Gender Experiment For our psychological gender experiment we chose to focus on the topic of memory differences between genders. At first we wanted to figure out if one gender had a better memory than the other‚ but then we also wanted to observe whether or not their memory showed better results when the objects were related to their gender. Therefore‚ the hypothesis we constructed was: If
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The typewriter (1873)‚ the telephone (1876)‚ the electric light bulb (1879) and other (7) ………… (INFLUENCE) developments gave people the (8) ………… (CAPABLE) to live and work in ways their grandparents could not have imagined. Over the next 30 years‚ little remained (9) ………… (ALTER) as the camera‚ the cinema‚ the photograph‚ the plane and radio all had an (10) ………… (ELECTRIC) effect on people and society. Use the word given in capitals at the end of the line to form a word that fits in the space in
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Albert Einstein is perhaps the single most ingenious scientist in American history. His contributions to science have forever changed scientific world. When Albert Einstein was only four years old he was greatly intrigued by a magnetic compass. The device convinced him that there was so such out there to be discovered. Einstein rebelled against the academic high school because intelligence was only measured in the ability to memorize facts and obey authority. He strongly believed intelligence could
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The wheelchair experiment introduced me to a world that I have never known. I have never been in a wheelchair or been affected by any form of hearing‚ visual‚ or physical disabilities. So‚ this experiment caused me to really think about how the layout of a space‚ weight of doors‚ etc. could affect someone. While using the wheelchair‚ I felt as if I was in the spotlight every time I entered a room or crossed paths with a group of individuals. People would look on as I posed in the wheelchair and give
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Should we use animals for experiments? (against) The question is‚what it means to use animals for experiments? It means‚ the investigators and doctors whose are producing medicines they have to test is first‚somehow‚to see how is the effect of the medicine.This “somehow” means the animals.Moreover I haven’t said anything about testing new products like cosmetic products‚make-ups‚sprays. In my opinion‚the animals are different‚they body and organism are different.For this reason the scientists
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Jeffrey Luong ACCEPTING MEN AS THEY ARE – ALBERT ELLIS In Albert Ellis’s‚ The Intelligent Woman’s Guide to Mating and Dating (1979)‚ he states it is a fact that most males are more interested in sex from love‚ that they love after being sexually satisfied rather than before going to bed‚ as females often do. He believes women should accept men as they are: sexually demanding‚ less devoted to the children‚ less warm and romantic. Ellis states it is the natural act of a man to be this way
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Albert Jacka Albert Jacka was born on the 10th of January 1893 in a small dairy farm in Winchelsea‚ Victoria. On the 17th of the first 1932‚ seven days after his 39th birthday‚ he died of chronic nephritis. He was the fourth child of 7 of Nathaniel Jacka and Mary Elizabeth Kettle. He spent most of his life in Wedderburn after his parents decided to move the family there in 1898 when Bertie was the age of 5. After completing elementary school‚ he found work as a labourer with his father‚ and
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a tremendous variety of oxidation states that appear in its compounds. The oxidation numbers range from Mn (III) in compounds like Mn(NO)3CO to Mn (VII) in KMnO4. Compounds of manganese range in oxidation number between theses two extremes. This experiment involves the preparation of a Mn (III) complex of actylacetone (also named 2‚4-pentanedione) which is a useful starting material for the preparation of other Mn (III) compounds. Manganese (III) complexes are relatively stable and can be prepared
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Name: Lawrence D. Mandras Date: August 17‚ 2013 Rating:_____ Yr. & Course: BSED-IV Laboratory Experiment no. 2 The Living Plant Cell Objectives: * To study the different types of plant cells. * To observe plant cells as to their shapes‚ structures and function. Materials: Microscope cover slip glass slide water onion Iodine soln. hydrilla salt tomato razor blade Medicinal dropper epidermal tissue of rhoeo-discolor
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