It establishes the learning context for the lab by:. Saying what the lab is about, that is, what scientific concept (theory, principle, procedure, etc.)Ý the researcher is supposed to be learning about by doing the lab; and. Giving the necessary background for the learning context by providing pertinentÝinformation about the scientific concept (this information can come from the lab manual, the textbook, lecture notes, and other sources recommended by the lab manual or teacher; in more advanced labs you may also. It provides the primary goals of the lab by:. Presenting the objective(s) for the experimental procedure (what is being done in the experiment, such as to measure something, to test something, to determine something, etc. Defining the purpose of the lab (the way evernote the experimental procedure is linked to the learning context). It offers a hypothesis for the experimental procedure by:.
Figure a-2 shows the graph of temperature versus pressure for the ideal case. Data From Experiment, voltage pres (V) mom Voltage temp (V) Pressure meas (kPa) Temperature meas (K) Temperature ideal (K).32.0011.90 298.94 312.17.39.0020 102.81 320.32 321.28.78.0031 119.82 346.26 374.44.31.0046 145.04 381.64 453.24.17.0052 138.14 395.79 431.69.35.0064. Temperature versus pressure, as measured by the transducers. Temperature versus pressure, as calculated from the ideal gas equation. The parts of a laboratory report. Introduction: ý, what is the context in which the experiment takes place? The primary job of any scientific Introduction is to establish the purpose for doing the experiment that is to be reported.Ý When scientists do research, the main purpose that guides their work is to contribute to the knowledge of their field.Ý That's why the scientific. The main purpose of writing a lab report, of course, is not to contribute to the knowledge of the field; but to provide you the opportunity for learning.Ý That's why it's important to begin the lab by establishing that learning context.Ý The learning context provides. An effective introduction to a lab report typically performs the following tasks, generally in the order presented:.
This appendix presents the data, calculations, and graphs from the experiment to verify the ideal gas equation. The first two columns of Table a-1 show the measured voltages from the pressure transducer and the temperature transducer. Column three shows the measured values of pressures calculated from the following calibration curve for the pressure transducer:.3087(VV) -.1176V.7276 where v equals the voltage output (volts) from pressure transducer, and p equals the absolute pressure (kPa). Column four presents the measured values of temperature (K) calculated from the calibration curve for the thermocouple: t t ref, v/S where t ref equals the ice bath reference temperature (0c v equals the voltage (volts) measured across the thermocouple pair, and s equals the. Finally, column 5 presents the ideal values of temperature for the corresponding measured values of pressure. These ideal values arise from the ideal gas equation (PVmrt). Figure a-1 shows the graph of temperature (K) versus pressure (kPa) for the measured case.
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Were there any book hidden variables that may have affected the reliability of the data. What suggestions could you make to improve the reliability of the data? How relevant or useful was this lab in your understanding of the current topic or concept. Student activity: to practice the steps of the " Scientific Method, " choose one of the problems below for the students to investigate: does salt water boil at the same rate as fresh water? Does the length of a pendulum affect the number of cycles per minute? Which color absorbs the most heat?
What type of insulator will keep a coke the coldest? How does the height of a ramp affect the speed of a marble? Purpose hypotheses Materials procedure data table Graph Conclusion Total points bibliography 15 pts. 100 Percent of Total points Assessed on The following Criteria: 100 - all data is complete and accurate 80 - most data is complete and accurate, however, a few mistakes were made 50 - some mistakes were made, data lacks completeness and/or accuracy. To the top Thanks for stopping by! You are 2/25/06 Email Copyright georgia louviere.
Elaboration is always the key! Include these "essential elements" in writing each paragraph: Paragraph One: In your own words describe the purpose of the experiment. Discuss any new terms that were relevant to understanding and conducting the investigation. Paragraph Two: Restate your hypothesis and your reasoning for this prediction. Summarize the lab procedure. Explain the setup of the lab, control/variable, etc.
Paragraph Three, describe the outcome of the experiment and how it relates to your hypothesis (supports or rejects). Refer to your data tables, graphs, etc. In assessing the data because actual data from your observations is a "must" in forming a conclusion. From your analysis, point out certain trends or patterns that support your conclusion. In conclusion, explain exactly what was/was not accomplished or learned from doing the lab. Give a detailed description of how you were able to determine the above.
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Try this, activity, observations are organized in: Data tables or charts. Graphs are visual representations of dubai the data so that it can be easily studied, interpreted, and analyzed. Circle, bar, and line are examples of kinds of graphs. Conclusion: This is a written summary of what was actually learned from doing the experiment. The conclusion will either support or reject the proposed hypothesis. The following is a three paragraph format to follow in writing an appropriate conclusion. The outline is a guide to help you include the necessary paper information. Adhere to all writing rules in completing this conclusion. Treat it as though you were writing a three paragraph essay in your English class.
Independent - the one factor that will be manipulated or changed during the experiment. Dependent - the variable that becomes altered as a result of the change that was made short in the independent variable. Try this, pendulum Experiment using variables! Observations: Scientists record observations in journals or logs. Observations are never destroyed once recorded. Observations are of two catergories: qualitative - information gathered through the senses such as smell, taste, touch, hear, shape, etc. Quantitative - information gathered due to precise measurements, such as height in cm, width in cm, mass in g, volume in cm3, density in g/cm3, time in seconds, speed in kph, etc.
order they need to be followed to complete the experiment successfully. Be very exact with each step in case someone else wants to repeat your procedure. It's like telling someone how to find your house. The least little mistake or detail left out could be critical to the outcome of the experiment. Using the safety symbols, identify any precautions that may need to be followed in completing this experiment. Identify the variables in the experiment: Controlled - factors that remain constant throughout the experiment.
In other words, you are not just pulling this "out of thin air you have some logical reason for thinking this. If you have no prior knowledge of the concept, you will need to do research before making a hypothesis. Also, explain exactly "why you think this". There is no right or wrong answer. It's strictly what "you think" and "why you think this". Materials: A essay list of equipment and supplies that will be needed to complete the lab procedure. List the major pieces of equipment first. Example, microscope, triple beam balance, 1000 mL graduated cylinder, etc.
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To do a lab write up, determine the problem and your hypothesis, make a list of the necessary materials, and explain the procedure of the lab. Then, perform the lab by following the procedure carefully and recording your observations. In your write up, include a discussion and analysis of your results. At the very end of the write up, state whether you will accept or reject your original hypothesis, and include a section on paperless possible errors that may have occurred. For more specific tips on writing the procedure section and recording your results, scroll down! Did this summary help you? Purpose: What is the reason for doing the experiment or what is there to be learned from doing the experiment? Hypothesis: What "you think" will be the final outcome of the experiment. This is generally based on prior knowledge or observations.