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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Grade 9 Science – Trolley Lab -‐ Luca Weller – AOI: Environment – 17/9/13 D.4 Materials: -‐1 trolley that will be accelerated -‐1 string to connect the trolley and the weights (ca. 2m) -‐1 set of weights that will accelerate the trolley (up to 5N) -‐1 a.m
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Extended Experimental Investigation Generating Electricity Physics Teacher: Mr Heagney By: Jesse O’Sullivan Background Information: The history of electrisity leads right back to more than two thousand years ago. Ancient Greeks discovered that rubbing fur on amber caused an attraction between the two. Many electricity-related discoveries had been made by the 17th century‚ including the differentiation between negative and positive currents‚ the classification of matireals as conductors
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The investigation on the average mass of DNA with the mass of banana‚ strawberry and kiwi. Purpose: The purpose of this lab is to investigate the comparison between the amount of DNA per gram of fruit that can be extracted from a banana‚ strawberry and kiwi and to determine which one has more DNA. Hypothesis: The banana genome contains 837 MBPs and the strawberry genome contains 206 MBPs and the kiwi genome contains 128 MBPs. This states that there are more base pairs in a banana genome
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Phase 1 Lab Report Title: Human Impacts on the Sustainability of Groundwater Instructions: You will need to write a 1-page lab report using the scientific method to answer the following question: If current human development does not change‚ will groundwater sustainability be affected? When your lab report is complete – submit it in the classroom. Part I: Using the time progression of industrialization and human development‚ fill in the data table below to help you write up your lab report
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Welcome to my commentary about trees. I will try to make this as insightful as possible‚ due to my interest in both the area of data structures in Mathematics and Computer Science. The reason why we use trees in mathematics is for organizing data into a structured manner and to link each of the pieces of data (from now on referred to as Objects)‚ together. The advantage of using a tree structure is due to it’s ability of holding continuous real-world data‚ which can be added and deleted at
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According to www.belbin.com different roles within a team and the impact of personality types on a team is Belbin’s nine team roles of behavior and they are: Resource Investigator‚ Team worker‚ Co-ordinator‚ Plant‚ Monitor Evaluate‚ Specialist‚ Implanter‚ Computer Finisher. • Resource Investigator Resource Investigator is when they use their nature to find ideas to bring back to the team. The resource investigator strengths are‚ they are outgoing‚ enthusiastic‚ they also explore development and
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Analytical Procedure The project hypothesises that the increase in call outs for the SMPD for noise complaints is due to the strained relationship between student and non-student residents‚ as they have differing principle of hours of activity‚ different economic status and different lifestyles in general. Traditional law enforcement conducted by the SMPD to curb late night parties had initially not seen any significant improvements. The SMPD became the subject of conflicting expectations from
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Aim How temperature affects membranes: investigating the effect temperature has on Beta vulgaris membranes when submerged in a range of different temperatures for one minute. Background Information A cell membrane is made up of a phospholipid bilayer formed by phospholipids that have a hydrophilic head and a hydrophobic tail. The phospholipids arrange themselves in order that the heads are exposed to water and the tails are not thus forming the bilayer. When the temperature increases molecules
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Purpose: To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders
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