H OW TO W RITE A F ORMAL L AB R EPORT. A F ORMAL L AB R EPORT I NCLUDES THE FOLLOWING SECTIONS Title...
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Transcript of H OW TO W RITE A F ORMAL L AB R EPORT. A F ORMAL L AB R EPORT I NCLUDES THE FOLLOWING SECTIONS Title...
A FORMAL LAB REPORT INCLUDES THE FOLLOWING SECTIONS
Title Background Information Background Questions Objective/Purpose/Hypothesis Procedure Data and Results Equations/Calculations Conclusion Sources of Error
TITLE The title includes:
The title of the lab in the table of contents as well as on the first page of your lab write up
Your Lab Partners Date Page Number
Table of Contents
Pg:1 Measurements
Measurement Joe Smith1/2/10Pg. 1
Table of contents
This is the first page of yourLab notebook – in the frontRIGHT Hand side !!
This is the first page of the Lab you are doingAGAIN, right hand side !!
BACKGROUND INFORMATION This includes a short summary of important
information about the lab All equations you will use in the lab
Measurement Joe Smith1/2/10Pg. 1
Background InformationStandard measurement occurs using meters, liters and grams. You can convert between these units using t-chart conversions.
Equations:Density=mass/volumePercent Error=actual-theoretical/theoretical X100
Table of contents
BACKGROUND QUESTIONS These will be asked on your lab worksheet handout Answer these questions using your notes and your book Either re-write the question or re-state the question in
the answer
Background Questions:1.What is the standard measurement for mass? Grams2.What is the standard measurement for volume? Liters
Pg. 2Don’t forget to number your pages
Notice nothing has been written on the left side of the page!!!! Keep the left side of the page for calculations!
Notice nothing has been written on the left side of the page!!!! Keep the left side of the page for calculations!
Table of contents
OBJECTIVE/PURPOSE/HYPOTHESIS Objective and Purpose will be listed in your lab
worksheet, simply copy them into your notebook Create a hypothesis based on the
purpose/objective of the lab
Pg. 2Background Questions:1.What is the standard measurement for mass? Grams2.What is the standard measurement for volume? Liters
Objective: Become familiar with measurement tools in labPurpose: To understand how to use different tools and convert between unitsHypothesis: The 10 milliliter graduated cylinder will be the most accurate
Table of contents
PROCEDURE List the procedure from the lab worksheet in
your lab notebook Include materials and any safety warnings
Pg. 3Materials:Graduated Cylinders (10ml, 25ml, 100ml)BalanceWeigh boats
Safety: Be careful with the glass instruments
Procedure:Fill the 100ml graduated cylinder with 10ml of waterThen put that water into the 25 ml graduated cylinder and record the actual volume by reading the meniscusEtc…….. Table of contents
DATA TABLE The data table includes any measurements
you take in lab
Data Table
Pg. 4
Volume
100ml 25ml 10ml
10ml 8ml 6ml
These are only things measured in lab, for example here was the first two steps of measuring how much water was in the 100 ml graduated cylinder
Table of contents
RESULTS TABLE The results table includes anything that you
have calculated!
Pg. 5
Results Table
Marble Metal 1 Metal 2 Dice
Density
Density is something that is found via a calculation so it must be in the results table!
Table of contents
EQUATIONS AND CALCULATIONS These are to be done on the LEFT side of the page
Pg. 5
Results Table
Marble
Metal 1
Metal 2
Dice
Density
.5g/ml
2g/L
Equations/calculations
Density of MarbleDensity=mass/volumeDensity=5g/10mlDensity of Marble = .5 g/ml
Density of Metal 1Density=mass/volumeDensity= 10g/5LDensity of Metal 1= 2g/L
ALWAYS INCLUDE UNITS!!!
Table of contents
CONCLUSION This should include the following
What you learned EXAMPLES from lab supporting that you did
indeed learnPg. 6
ConclusionI learned from this lab the difference between accuracy and precision. For example I understand now that a 10 ml graduated cylinder is more accurate than a 100 ml graduated cylinder. ETC………………….
Table of contents
EXAMPLE OF A POOR CONCLUSION I learned a lot. This lab taught me how to
measure things using different lab materials.
Characteristics of a Poor Conclusion “I learned a lot” is stated No examples from lab You state that the lab has taught you something
yet you do not back it up with evidence It is two sentences and seemingly has no effort
put into it
Table of contents
CHARACTERISTICS OF A GOOD CONCLUSION
Includes the following Very detailed about what was learned and
accomplished in lab Gives more than two examples of evidence of
something learned Use complete sentences Discusses if the objective was met Discusses the outcome of the hypothesis, if it
was proven or not and supporting evidence to prove this statement
Discusses percent error and the values that they found
Table of contents
SOURCES OF ERROR Include at least three reasons why you have a percent
error Do not include calculator error!
Discuss the possible effects this error could have had on the results
Pg. 7
Sources of Error: 1.When we transferred water from the graduated cylinders some could have spilled out or been left behind in the container. This could have caused a lower level being read out of the next graduated cylinder causing error.
Also do not forget to show percent error in the calculations section!
Table of contents