LABORTORY MANUAL (original) (raw)
LAB REPORT GUIDE MECHANICAL ENGINEERING DEPARTMENT
The following template, including the title page, has been prepared to guide the students for writing good experimental lab reports in mechanical engineering lab courses. This guide will help to assess how well each student group learning (b) and (g) outcomes.
EXPERIMENTAL LABORATORY MANUAL by discip 1
• The title of the experiment. • Your name and the names of any lab partners. • Your instructor's name. • The date the lab was performed or the date the report was submitted. Title. The title says what you did. It should be brief (aim for ten words or less) and describe the main point of the experiment or investigation. An example of a title would be: "Effects of Ultraviolet Light on Borax Crystal Growth Rate". If you can, begin your title using a keyword rather than an article like 'The' or 'A'. Introduction / Purpose. Usually the Introduction is one paragraph that explains the objectives or purpose of the lab. In one sentence, state the hypothesis. Sometimes an introduction may contain background information, briefly summarize how the experiment was performed, state the findings of the experiment, and list the conclusions of the investigation. Even if you don't write a whole introduction, you need to state the purpose of the experiment, or why you did it. This would be where you state your hypothesis. Materials. List everything needed to complete your experiment. Methods. Describe the steps you completed during your investigation. This is your procedure. Be sufficiently detailed that anyone could read this section and duplicate your experiment. Write it as if you were giving direction for someone else to do the lab. It may be helpful to provide a Figure to diagram your experimental setup. Data. Numerical data obtained from your procedure usually is presented as a table. Data encompasses what you recorded when you conducted the experiment. It's just the facts, not any interpretation of what they mean. Results. Describe in words what the data means. Sometimes the Results section is combined with the Discussion (Results & Discussion). Discussion or Analysis. The Data section contains numbers. The Analysis section contains any calculations you made based on those numbers. This is where you interpret the data and determine whether or not a hypothesis was accepted. This is also where you would discuss any mistakes you might have made while conducting the investigation. You may wish to describe ways the study might have been improved. Conclusions. Most of the time the conclusion is a single paragraph that sums up what happened in the experiment, whether your hypothesis was accepted or rejected, and what this means. 14 Centrifuge Analytical balance Balance (electronic) Bunsen burner Crucible tongs Pipets Forceps Funnels Burner Crucible Graduated Cylinders Buret & Stand Pipets and Bulbs Volumetric flask Watch dishes Beakers Vials Petri dish Buret Flasks Desiccator 15 Drying cabinet Muffle furnace Water bath WHAT IS CHEMISTRY? Chemistry is a branch of physical science that studies the composition, structure, properties and change of matter. Chemistry is chiefly concerned with atoms and molecules and their interactions and transformations, for example, the properties of the chemical bonds formed between atoms to create chemical compounds. As such, chemistry studies the involvement of electrons and various forms of energy in photochemical reactions, oxidation-reduction reactions, changes in phases of matter, and separation of mixtures. Preparation and properties of complex substances, such as alloys, polymers, biological molecules, and pharmaceutical agents are considered in specialized fields of chemistry.
This guide sets expectation levels for the laboratory reports. A professional and complete report is expected for each exercise.