3/22/2013 Lab 1- The scientific method In this lab I am learning about the steps of the scientific method and how it can be applied to daily life. In my first exercise I analyzed data presented to me in a table (table 2) on fish population in relation to the amount of dissolved oxygen ( ppm ) in the water. The patterns indicate that when more dissolved oxygen (ppm) is present in the water‚ the number of fish observed increases. In developing a hypothesis for this theory‚ I have decided that if
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BIO 110 Lab 1 The Scientific Method Exercise 1 1. Based on the information in Table 2‚ the patterns I observed were that were 2ppm of Dissolved Oxygen added each time and there was 1 fish less than the amount of Dissolved Oxygen‚ then 4 fish less‚ then 3 fish less‚ then 4 fish less‚ than 5 fish less. I think that the fish can handle the amount of Dissolved Oxygen to an extent then the population falls‚ but then starts to build back up. I also think that if the population is a bigger number
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Methods for studying cells in the lab Centrifugation A centrifuge is a device for separating particles from a solution according to their size‚ shape‚ density‚ viscosity of the medium and rotor speed. Centrifugation can be used to separate cells from one culture or to isolate an organelle from the rest of the cell. The process relies on speed; the faster and longer the particle is centrifuged‚ the smaller the particles are that will be separated. Separation occurs by causing the larger particles
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** Introduction : A medical microbiology lab performs testing on human samples collected from different body sites. The tests are used to detect and identify any microorganisms capable of causing disease. Knowing of unknown microorganism is important on how this microorganism works and how it is structured‚ means knowing how it can affect humans. The purpose of this study was to identify an unknown bacterium by applying all methods that were previously conducted and learned in the medical microbiology
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investigating does the temperature affect how quickly the particles diffuse to an even concentration throughout the water‚ we are going to do this experiment by using food coloring to see how quick the food coloring diffuse in hot water and cold water. Materials: • • • • • • • • One beaker Hot plate Ice Water Food coloring Thermometer Timer Eye dropper Hypothesis:I think the food coloring will spread faster‚ because the particle in the hot water have more kinetic energy than the cold water‚ so it will
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dictionary 1. article 1. the The purpose of this is knowing the types of bacteria that exist in our environment and diseases caused by them‚ and how treat it. MATERIAL AND METHODS: An unknown bacterium was handed out
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proper methods taught thus far in the microbiology laboratory for the identification of two unknown bacteria. An unknown labeled as number 3 was given out by the lab instructor. The methods that have been lectured and absorbed pertaining to identifying
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understand the density of an object to be the amount of material that is packed into an object. 2. Length in cm is 80 cm. width in cm is 50 cm. The area in cm2 is 3‚200 cm2. 3. The money depends on the hours you work‚ because the more hours you work‚ the more money you make. The relation between a and t is A=10t. The slope will be 10 dollars ($) per hour. 4. The scientific method is the way to understand the world around us. Scientific method starts with questioning the world around us. Then creating
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Question 1 Ans: the factors that driven the change in Macedonia are: 1. Balkans being a political and cultural crossroad throughout history. 2. A civil war in 1990’s due to unresolved ethnic and religious tensions. Question 2 Ans: The first reason for change in that country was to transform Macedonia into democratic state and integration into European society Secondly‚ establishment of industrial relations arm that would act as conflict management to solve various ethnic‚ and political
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Scheme of Analysis for Lab 2 Unknown Sample Description Phase‚ color‚ odor‚ crystalline or gel-like? If crystalline‚ what is crystal shape – needle-like or powdery? Does it look like a pure substance or a mixture? How many components appear to be present? Tests on original sample Flame Test Bushy yellow‚ orange flame – Na+ is present and possibly K+ and NH4+. Pink-purple flame – K+ is present and Na+ is not. (Possibly NH4+) No color or faint trace Na+ - NH4+ is possible‚ K+ and Na+ are
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