Science Essays

Introduction This Instrumentation task is an independent project, aiming to demonstrate my practical, experimental and planning skills. I have the choice of three options in which to do so, and they are as follows… * Building and testing a sensor * Exploring the characteristics of a sensor * Designing and …

When doing each procedure, take extra care and wear eye protection, gloves, and lab coat because there’s a high risk due to the organic chemical been unknown. Risk assessment before the test alkene and phenol: Procedure / Chemical Risk Precaution Information derived from Bromine water Toxic: very toxic by inhalation. …

Here is the flow chart to determine the unknown organic. Start with the 2,4-DNP test and then follow the chart. DNP – 2,4-dinitrophenylhydrazine test The Safety: DNP is harmful – avoid contact with skin, eyes etc. Wear safety glasses. At this stage we have no idea what the organic chemical …

Aim To see what happens to the size of the shadow when certain factors are changed. Variables There are many variables in which I could change. For our experiment it will be sufficient for us only to change one variable the rest we will keep constant. Here is a list …

Introduction: In the following experiment, I predict that the filament bulb in which we are testing, on will not obey ohm’s law. Their are many factors which make me believe this, such as the temperature of the bulb. If the filament bulb DID obey Ohm’s Law, then the temperature would …

Introduction I wanted to find out how a rotary potentiometer could be utilized to work as a weighing scale. The specific interest is the accuracy of this method and distinguish the advantages and disadvantages of using digital readings instead of our common everyday analogue spring gauge balance at the local …

Purpose: To investigate what physical characteristics of students how it affect the power generated on running up the stairs. Hypothesis: The student that can generate the highest power would probably be Adam K, because it is so obvious that he’s the most physically fit among every one of us. In …

In this experiment, I am going to prepare the organic compound of antifebrin from readily available chemical reagents. Antifebrin is an odourless solid chemical of white flake-like appearance. Chemically, antifebrin is the amide phenylethanamide CH3ONHC6H5. It’s slightly soluble in water. It does have the ability to self-ignite if it reaches …

Britain was a land filled with good soil, which meant that most people’s time was occupied in agriculture, feeding themselves and working to live as opposed to living to work. The Open Field System was the main method used and had been since Medieval Times. This involved three open fields, …

Aim: The aim of my investigation is to determine the specific heat capacity of aluminium. Theory: Specific heat capacity is the amount of energy required to raise the temperature of 1kg of mass by 1degree Celsius.(1) In order to calculate the specific heat capacity heat capacity (c) of aluminium I …