7 Data Chart the findings Record observations as the experiment is happening.observationsData1floated, started to break down at 2 min234
8 Cost of soap Ajax: $1.87 – 30 oz Dawn: $2.83 – 24 oz Great Value: $1.97 – 24 ozPalmolive $2.64 – 25 ozGain $1.97 – 30 oz
9 Data AnalysisOrganize the data: graphs , charts, ranges, mean, median, mode etc.
10 Conclusion How do the results relate to the original problem? What were some possible errors in your procedure? Timing? Temp? Number of repetitions? Amount of water? Control? Was there only one variable?How could this experiment be improved?Extensions: How could this info be useful in real life? What might it mean? Does it make you come up with another hypothesis?
11 Share your ResultsTurn in your formal write up.
12 LAB REPORT FORMATNote: all lab reports are to utilize this format (discrete sections, labeled as below, are mandatory). Reports are to use formal language; avoid using the words ‘we’, ‘I’, ‘us, ‘our’, etc. The report should have a title, your names, the date, and your class period. Conserve paper! Use both sides and eliminate unnecessary extra spacing.
13 INTRODUCTIONI. Describe the general rationale for your investigation (Why is this being done? Why is this an important study? What can we learn or apply from this?).-Provide all appropriate background information for reader.-Clearly state the purpose of your investigation.-State hypothesis or hypotheses (null and alternative are often appropriate
14 Materials and Methods (Procedure) II. -List the materials used in your investigation.-List (and describe, if appropriate) the procedures employed. This should be in list form, NOT a paragraph. Do not describe standard techniques such as massing or transferring fluids.
15 Remember that your goal is to provide sufficient information so that your investigation: 1. can be readily reproduced 2. can be evaluated for errors, limitations, etc. so that any conclusions can be assessed for believability (confidence).-If the procedure was provided prior to your investigation, you may simply attach it to your report. It is important to describe any changes which may have occurred from this protocol.
16 III. RESULTS -Present all data in clear and concise forms (at times, graph paper or other materials may be provided for this purpose). If calculations are involved, show all work or work through one problem to illustrate.-Make certain that all charts, graphs, tables, etc. are clearly titled and labeled.-Highlight trends or significant results for the reader (do not repeat all data in prose form).-This section may also include a statistical analysis of your data.
17 IV. CONCLUSIONS-Evaluate data in light of your hypothesis. Be careful with your choice of words; avoid the word prove!-Interpret and analyze your data for the reader. Offer possible explanations or reasons for your obtained data.
18 -In light of your materials and procedure, evaluate your experiment -In light of your materials and procedure, evaluate your experiment. Describe the sources of possible error or the limitations of your materials or procedure. Suggest means of reducing these errors. Suggest improvements and include suggestions for further possible studies (how could this study be extended to provide relevant information?).
19 Lab Test Rubric Name/Names ____________________________________________________ Standards: The levels at which students are expected to perform the taskscoretopicAdvanced (5)Proficient (3)Needs Improvement (1)QuestionQuestion is narrowly focused and suggests how an answer might be investigated. It is answerable.Question is answerable but not narrowly focused.Question is too broad and not practically investigated.Identificationof VariablesCorrectly identifies specific, measurable independent and dependent variables.Identifies variable being tested & variable being measured. .• Variables and constantssignificantly incomplete &/orinaccurate.HypothesisHypothesis is testable and clearlystated in “If… then…” format.Specifically predicts relationshipbetween dependent and independent variables.Hypothesis is clearly stated. Itpredicts the influence of one variable on another.Hypothesis is poorly stated anddoesn’t directly mention thevariables.MaterialsComplete, detailed list of materials (size, conc., quantity) presented in vertical list formatMost materials are listed and appropriate.Materials quite incomplete or inappropriate for experiment.ProcedureAccurately tests the hypothesisAttempts to test hypothesisDoes not address hypothesis.Conducts or analyzes at least 3 trials.Multiple trials attempted or need is recognized.Single trial, poor understanding of use of multiple trials.Procedure is in vertical listformat, accurate, complete, easy to-follow, and reproducible byanother person. Includesdiagrams to clarify proceduresStep-by-step procedure, generallyComplete. Minor errors/omissions make it difficult tofollow or not always repeatable• Procedure difficult to follow Major omissions or errors.• Includes all appropriate safety concerns.Includes critical safety concernsSafety concerns trivial or inadequately addressed.
20 DataCollection &PresentationData table contains accurate,precise raw data & summary datareported in correct SI units withdescriptive title.Data table with accurate data,most units labeled or implied.Minor errors. Title absent ortrivial.Data table inaccurate, confusing,and/or incomplete. Missing units.Data summarized in well organized,easy-to-read graph &/or figures. Descriptive title, appropriate labeling, keys, etc.• Data displayed in well organized easy to read graph &/or figures.Descriptive title, minor errors in use of units and labeling.• Graph/figures presented in aconfusing and/or sloppy fashion.Data summarized in a clear,concise, logical manner Patterns identified & described,but no conclusions drawn.Reasonable, but somewhatunclear summary of data.Patterns in data not clearlyidentified.• Summary is unclear and illogical.Patterns in data not identified.ConclusionScientifically valid, logicalconclusion, well supported by thedata collected. Clearly addresses problem and stated hypothesis.• Scientifically valid, logicalconclusion, supported by datacollected. Attempts to addressproblem and stated hypothesis.Conclusion is incomplete orillogical. Does not address theproblem and hypothesis.Sources of error identified andexplained. Appropriate recommendations made to eliminate errors.• Sources of error identifiedWeak/trivial attempt to identifysources of error.Student generates specificquestions for future studyStudent makes attempt togenerate questions for futurestudy.Student makes incomplete orinappropriate attempt to extend or apply knowledge.