How does the length of a wire affect its resistance? Introduction: This first report in Physics will show the investigation of how the length of a wire affects its resistance. For starters I will go through the main definitions‚ to get a better knowledge of what is going to happen. However I will plan it out first to show each step of how I started‚ and then go into detail about the results and what the investigation on a whole has showed me. I shall then conclude my findings and present them with
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evaporates‚ it lowers the temperature of the substances around them‚ because evaporation is an endothermic process. In the graph‚ each substance has a different curve. Some lowered the temperature much more than others. This is because different substances require differing amounts of energy to evaporate. To test this‚ the temperature change from the evaporation of 4 different alcohols was measured and compared‚ along with cyclohexane. Methanol had the largest change in temperature‚ 18.9 ºC. This indicates
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"These cleanup efforts may have caused additional damage‚ scientists now worry. Cleanup crews disturbed the river bottom‚ where fish spawn. Workers also cut down oil-soaked vegetation along stream banks--home to waterfowl and other animals" (Oosthoek 47). The oil in the river bottom disturbed fish and other animals who had done nothing to disturb humans. The animals can’t do anything to protect themselves from things caused by humans. Alexis Writing stated‚ "An
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but also survival of those most adaptable to changing surroundings. (Illustrations for this article coming soon.) Background Paleoanthropologists – scientists who study human evolution – have developed a variety of ideas concerning how environmental conditions may have stimulated long-term human evolutionary change. Human evolution has involved the emergence of a diverse suite of species and an accumulation
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Lab 8 Cellular Respiration and Fermentation Objectives: 1. Observe the effects of cellular respiration on temperature in a closed system. 2. Investigate carbon dioxide production in both germinating pea seeds and crickets. 3. Perform an investigative study of the rate of cellular respiration in both pea seeds and crickets at various temperatures. 4. Compare the alcoholic fermentation of glucose‚ sucrose‚ and starch by yeast. Introduction All organisms must have a continual
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Data Analysis Does radiation affect the growth of seeds? If‚ plant seeds are exposed to microwave radiation‚ then the seeds will grow less than how a seed is usually grown. The independent variable was the amount of microwave radiation the seeds receive. The dependent variable was the growth of the plant seeds. Control variables were the amount of water (30 mL at a time)‚ the amount of light (11 hours each day)‚ and the amount of seeds. The control group was the non-microwaved seeds. The experimental
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what level of turbidity will be ideal for a healthy wetland ecosystem. Turbidity is the independent variable in the experiment‚ while the abundance of riffle beetles is the dependent variable. The control variables in this experiment will be pH‚ temperature‚ the
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How does the ocean effect the climate on land? The oceans play a huge role in the climate zones we see on land. Even the area that are nowhere close the the oceans are still effected by the ocean. The oceans act as a heater to the world because of them absorbing insolation rays from the sun. The is a result of land temperature altering faster than the oceans does. However‚ the land still absorbs some insolation but cannot maintain the same heat for as long as the ocean. Especially the tropical
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Environmental Racism impacts people’s lives everyday. Some people make profits off this while the others get to suffer. Environmental Racism causes pollution‚ it harms people daily and affects the community. Environmental Racism is something that can really harm the community. Furthermore ‚ Environmental Racism affects most neighborhoods. It has affected black communities the most . According to an article by Peter Mitchell through studies it shows that “ Black populations near toxic-exposure sources
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Cleaning Fish Tank When I was younger I loved going to the doctor’s office. It wasn’t because I loved being sick but because I would be on the edge of my seat ready to stare at the huge fish tank in the waiting room. I remember there were all types of fish and of all colors. Years later I now have a fish tank of my own that is a little smaller‚ and I have had to learn how to take care of it. One of the hardest things to deal with is cleaning the fish tank. When cleaning the tank it is important
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