Discuss discrepancies and anomalies in your data. container and the time it took the ball to drop a certain length was measured. I had to wait 37 minutes, 26.8s (2246.8s) for the metal piece to reach the bottom! the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance If you were pushing a box on a shag carpet versus ice, which one will the box slide farther on? What was the conclusion of the experiment? Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. Theory We consider the schematic in Figure1. somewhat optimistic one. Additional materials, such as the best quotations, synonyms and word definitions to make your writing easier are also offered here. Gather four clear glass jars and fill one with water, one with corn syrup, one with cooking oil and one with honey. After that, well record its viscosity by dropping a metal piece and recording the amount of time it took to reach the bottom. Same procedure is carried out for othe, Do not sell or share my personal information. To unlock this lesson you must be a Study.com Member. Report Use the template provided to prepare your lab report for this experiment. Microscope Lab Report Conclusion Questions: . Start by filling each glass with one of the liquids. Sphere Weight[g] Diameter[cm] Density[kg/m 3 ] Procedure A series of different sized ball bearings were dropped into a measuring beaker containing glycerine. DOCX, PDF, TXT or read online from Scribd, 100% found this document useful (5 votes), 100% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. Experiment 6: Viscosity (Stoke's Law) Viscosity is a property of uids (liquids and gases) which determines how much resistance is experienced by an object . P1 - Practices digital signal processing are practices p1,p2,p3. Clean the glass jar and fill it with the viscous fluid. Of course, some liquids are more viscous than others. Small 1 0. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) Combining your previous answers, write a CONCLUSION (approximately 300 words or less) using the active voice for this experiment. Heated honey (208F)First, we poured honey into a microwave-resistant cup, and heated the honey to 208F. Compare your results of the measurement of the viscosity with the accepted values. Finished completely. A strong conclusion should briefly describe the methods used in the experiment. - 1 Scale (1 decimal) 10.6 Viscosity Test of Bitumen 10.6.1 Introduction Viscosity is reverse of fluidity. to deformation, can be understood by looking at two layers of the same fluid traveling at different speeds and By reducing errors and obstructions it will justify data for better discuss and . Filtration time was 1.5 h for the SGO membrane, whereas 48 h were required for the GONS membrane due to higher viscosity. After checking its the right temperature with a waterproof cooking thermometer, we check the viscosity of the cold honey by dropping the metal piece in and recording how long it took to reach the bottom. Solid densities: from about 0. The point of your lab report is not to merely confirm what you expect. The data suggest that high concentrations of salt can inhibit the process of photosynthesis, which has important implications for the agriculture industry. Each fluid was placed in a cylindrical container. calculated can be found in the tables bellow. To learn more, view ourPrivacy Policy. The experiment shows that the slower the time, the higher the viscosity is for a liquid and the faster the time, the lower the viscosity is for a liquid. A factor closely associated with renal disease status in clinical diagnosis is abnormal human serum albumin (HSA) concentration levels in human body fluids urine, serum, etc. The 2. Time how long it takes for the marble to sink. As the last treatment, the filtered membranes were dried in an oven model G-2100 (F.LLI GALLI G. & P. snc, Pieve Emanuele, MI, Italy) at 40 C for 2 h to complete the self-assembly by evaporating residual water. Extracts from this document. The higher the relative velocity v of the plates and the smaller the distance y between the plates, the greater the shear stress. 2 g/cm3 to 20 g/cm3. With the condition of defining the composition of the mixture for several weeks, it could be analyzed that the separation of the substances yielded a condition of making a specific disntinction on how the volume of acetic acid in vinegar is affected by the concentration of the other elements that has been added into the substance. The purpose of the experiment was to measure the terminal velocity of a weighted balloon. Drop Frames 240 /s Velocity[m/s] Viscosity is a fluids internal resistance to flow under stress. How did you know? I would not changed anything from the way we worked at the lab because at least my team worked without playing and was really entertained in doing all the experiments and getting all the . Drop 2 44 1. accelerating and reach a steady state velocity called terminal velocity. Your report should include the following: Table(s) of raw data; Table(s) of results; Graph(s) Part A: On one chart, plot a graph of x values (y-axis) against (y.h) 1/2 values (x-axis) for each test. (1) Two resistors of unknown resistances Motor oil 05%, For result analysis and evaluation we calculated the average Reynolds number for each fluid with the A lab report conveys the aim, methods, results, and conclusions of a scientific experiment. Drop 1 43 1. You're trying desperately to shake it, but to no avail. This was quite impossible in our experiment to be obtained. Drop 1 43 1. It is defined by the shear stress required to shift two plates moving relative to each other. 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Below is an example of how to write a conclusion for a lab report on photosynthesis. Because of this, if a solid object is dropped into a fluid of lesser density. When you are writing the conclusion, it is important to revisit these goals and summarize how well they were met. How did you know. Thats nearly half an hour! The DNA cleavage (in dark) and . spam or irrelevant messages, We use cookies to give you the best experience possible. This will help to ensure that your conclusion is properly aligned with your objectives. Small metallic . 10. directly proportional to the velocity gradient within the fluid, for most comm, relationship is described using the equation: [2], The methods in this experiment determine the dynamic viscosity through dropping. oil, SAE-90 oil is 8.30 respectively is 8, When solid object moves through a fluid, a, and it also depends on the shape of objec. Castor oil 17% Find the diameter (d) of the ball using the screw gauge. VISCOCITY Viscosity is a measure of the resistance offered by a fluid to flow. Hence the inner radius of the jar R can be found. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? This suggests there is a factor in the measurements or premise thats causing a systematic Low viscosity fluids flow easily (water, alcohol); High viscosity fluids pour slowly (molasses, cold honey, etc.). Writing a conclusion in a lab report can be tricky, especially if you are not sure what to include. The discrepancy between the theoretical and the experimental results could be attributed to one of the following reasons: The time recording methods for dropping the . Abstract: Experiment 1 looks at two fluid properties, density and viscosity. The measured viscosity of water matched the theoretical value. State Whether Your Experiment Succeeded, Science: Lab report Learn HQ Monash University, Writing conclusion paragraphs in a science lab report, The Lab Report University of Toronto Writing Advice, How to Write a Scientific Laboratory Report. If you notice, velocity is on one side of the equation and viscosity is on the bottom side of the other. The answer is a property of liquids called viscosity. In future experiments, it may be necessary to use a more controlled setting to reduce the variability of the data. For example, honey is more viscous than water. The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the . Viscosity is one of the properties to describe the " fluidity " of fluid. Data measured and The inverse relationship predicts that as the velocity of our ball gets smaller, the viscosity of the liquid must have gotten bigger. Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. But, when you spill your water, it goes everywhere. The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the experiment. Content uploaded by Bilal Ahmad. Hint: What is the experiment title? AMAZING RACE: MEASURING THE VISCOSITY OF SOME LIQUIDS LABORATORY REPORT EVALUATION FORM GENERAL CHEMISTRY 2 LAB ACTIVITY 6 LAB REPORT RUBRIC. Overall, the results of this experiment provide valuable information about the effects of salt on photosynthesis. Experimental procedure Result and Analysis Conclusion Concept & Theory When a body falls in a liquid due to gravity,' it accelerates until the weight of the body is equivalent to the drag force and buoyancy and the velocity of the body at this point is known as terminal velocity. Drop 3 146 0. 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