Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water was conducted
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Physics Lab Report Format General Remarks: Writing a lab report is the only way your TA will know what you have done during the lab and how well you have understood the process and the results. Part of your lab experience should be learning how to organize and present your work in a scientific way. There is no framework that can be used as a “one size fits all”‚ therefore this sample lab report should only be used as an example. Any lab report should have the following features:
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Since the Grignard reagent can easily react with water‚ all glassware including the 25 ml round bottom flask‚ magnetic stir bar‚ 3 and 5 ml conical vial‚ 50 mL Erlenmeyer flask‚ claisen adapter‚ drying tube and 5 glass pasteur pipets were first added to a 250mL beaker and placed in the oven for 30 minutes. After the completion of the thirty minutes‚ 0.150 g of shiny magnesium turnings and a stir bar was first added to the round bottom flask and the claisen adapter along with the drying tube packed
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NaOH (±0.05mL) First titre 21.3 Second titre 18.2 Third titre 15.2 Fourth titre 12.0 Qualitative data Observations: When dissolving the acid X in the water‚ most of it did not dissolve and become whitish foam sitting at the top of the solution. When transferring the acid from the mortar to the flask by washing it with water‚ the low solubility of the acid made it hard and some of it was still stuck in the mortar and was not transferred into the flask. When phenolphthalein was added
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waste water discharges by the industries cause serious pollution. Besides‚ non point sources along with the stretch of the river are also important sources of pollution of these rivers. (IWM‚ 2004) The river Turag running by the side of the Dhaka city‚ the capital of Bangladesh‚ is one of the most polluted rivers in Bangladesh. Many industries have set up in and around the Dhaka city during the last decade‚ and the number of the new industries are continually increasing. The water quality of Turag
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extreme conditions‚ they do require clean air. This is why they are excellent environmental indicator. An indicator species is an organism whose presence or absence reflects the overall health of an environment. Lichens flourish where there is good air quality; however‚ they cannot survive where the air is polluted and toxins loom. This is because they have no stomata‚ or pores‚ to shut to keep the toxins out; therefore‚ absorbing all of the pollutants in the air. Because they are such unique organisms
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Engineering Laboratory (Lab) Report Department of Engineering Faculty of Engineering and Science‚ University Tunku Abdul Rahman (UTAR) 1. Introduction Laboratory (Lab) reports are the most frequent document written by engineering student. These reports can contribute a significant amount of marks and yet little time or attention is devoted in understanding on how to write them well. The aim of this document is to provide a general guideline on writing a lab report. A lab report should not be
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Mass Affecting Final Velocity Name: Anlin Pereira Class: 11C The lab was conducted on 24th September 2014 Teacher: Ms. Timlin Research question: How does the mass (grams) affect the final velocity (m/s) of the toy car on a one meter ramp? Aim: To carry out an investigation to prove that factors such as mass (grams) affects the final velocity (m/s) of an object as it travels a straight line and has a constant acceleration (m/s²). Hypothesis: It is predicted that the mass of the moving object
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simple mechanisms used to convert rotary motion into oscillating linear motion and vice-versa. The first of these is the slider-crank - a mechanism widely used in engines to convert the linear thrust of the pistons into useful rotary motion. In this lab we will measure the acceleration of the piston of a lawn mower engine at various speeds. The results exemplify a simple relation between speed and acceleration for kinematically restricted motions‚ which will discover. An adjustable slider-crank apparatus
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STRATEGY TO FILTER AND BLOCKING TRAFFIC CREATE BY ANTI-CENSORSHIP SOFTWARE IN LOCAL AREA NETWORK A thesis submitted to the Graduate School in partial fulfillment of the requirement for the degree Master Of Science (Information Communication Technology) Universiti Utara Malaysia By Kamal Harmoni Kamal Ariff PERMISSION TO USE In presenting this thesis in partial fulfillment of the requirements for a postgraduate degree from Universiti Utara Malaysia
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