Potato Batteries: Veggie power! Data and Analysis Background The battery was invented around 1800 by Alessandro Volta in Italy. It has become an indispensable part of modern life. Why are batteries so useful? Because they convert chemical energy into electrical energy. You can use this electrical energy to light a flashlight‚ to start a car‚ or to listen to your favorite music. We made a simple battery out of a potato by placing in it a zinc strip and a copper strip. At the zinc strip‚ the
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Qualitative research is a generic term for investigative methodologies described as ethnographic‚ naturalistic‚ anthropological‚ field‚ or participant observer research. It emphasizes the importance of looking at variables in the natural setting in which they are found. Interaction between variables is important. Detailed data is gathered through open ended questions. The interviewer is an integral part of the investigation (Jacob 1988). This differs from quantitative research which attempts
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about the Nursing shortage. The abstract offers a clear overview of the study. The abstract states that the problem stems from the nursing shortage‚ and this is what causes stress and burnout. The abstract also states that the “study used a qualitative theory approach to examine the experiences of nurses and their particular concerns about caring for a dying patient” (Peterson‚ 2010). The purpose of the study is to examine the experiences of nurses and their concerns about caring for the dying
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Qualitative and Quantitative Research Tina Okun June 24‚ 2015 Professor Makin Research Methods and Statistics for Criminal Justice Abstract This essay will describe a research subject. The essay will discuss existing literature in regards to the subject. Variables that affect the subject will be explored. The methodology in which the research will be conducted will be revealed. The rationale of the methodology will also be provided. Lastly‚ annotated references will be included
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Experiment: Turgor in Potato Tissue 1. We labelled three test tubes A‚ B‚ C‚ D and added initials of people in our group. 2. Used a syringe or graduated pipette to put 20 cm3water in tube A and 10 cm3 in tube B. 3. Put 20 cm3 of 17% solution in tube C and 10 cm3 in tube B; put 20 cm3 pure sucrose solutions in tube D. 4. Working on the dissecting board I cut the ends off large potato. I was careful with the knife and cut it onto the dissecting board away from myself. 5. Used a cork
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OSMOSIS LAB BACKGROUND INFORMATION. Dialysis tubing is being used to model a plasma membrane. Isotonic solutions are solutions that have the same concentration of solutes on both sides of the membrane. Hypertonic solutions are solutions that have more solute to the one with less solute. Hypotonic solution are solutions that have less solute to the one with more solute. RESEARCH QUESTION:which dialysis tubing will gain the distilled water and which one will loss its content
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populations. The Irish potato clones were certainly low on genetic variation‚ so when the environment changed and a potato disease swept through the country in the 1840s‚ the potatoes (and the people who depended upon them) were devastated.Thesis: The Irish Potato Famine devastated the Irish population and economy as well as sowing the seeds of rebellion against England. 1st Point: Ireland dependent on potato • Families spent most time on cash crops to pay rent • Potato easy to grow‚ nutricious
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weight change in potato cubes 2) To determine the isotonic solution concentration for the potato Hypothesis: 1) If the concentration of the salt solution is higher than the concentration in the potato cubes‚ the percentage of weight change in potato cubes will be higher (positive). If the concentration of the salt solution is the same as the concentration in the cell‚ there will be no net movement of water through osmosis therefore there will be no percentage of weight change in potato cubes 2) The
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utilization of mathematics‚ the understanding of the mechanics of gravity and the harnessing the power of the atom. With all these pivotal discoveries and huge technological advancements‚ there have been many that have been overlooked‚ such as “The Potato.” Since I was a child‚ I have always been interested in topics that kids and even adults would find inexorably boring and absurd. My parents were at one time concerned at my unorthodox interest. At one time‚ I remember myself enraged when my dad
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Buston and Wight in 2010 conducted a qualitative study (in-depth interviews) to better comprehend what motivates incarcerated male young offenders to seek STIs testing and why others have not been tested. The independent variables included characteristics of the interviewees (e.g.‚ age‚ sex education‚ sexual partner history‚ contraceptive use‚ testing for STIs‚ residential care‚ religious background‚ and education level). The dependent variable was STI testing behaviors. The sample included 40
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