Chifley College Mount Druitt Campus ASSESSMENT TASK: INDEPENDENT RESEARCH PROJECT Student: Task Number: 4 Subject: Science Year: 9 Class: Teacher: Weighting: Marks: Date Issued: Date Due: 15% of Yr 9 40 16/07/2014 13/08/2014 Outcomes Assessed 5.13 Independently producing appropriate investigation plans. 5.14 Undertaking first-hand investigations independently with safety and competence. 5.15 Gathering first-hand data accurately. 5.17 Explains patterns and relationships in data. 5.18 Using appropriate forms of communication to present information. 5.19 Using critical thinking skills to evaluate information and draw conclusions. Task Description Students will design and conduct an experiment on the conservation of energy, by examining the effect of one variable on another when bouncing balls. Students will analyse results and present them in an appropriate form. Task Instructions and Requirements The task is divided into three parts, A, B and C. PART A – Plan an experiment to study the effect of height from which you drop a ball on the height to which a ball will bounce up. Note: Use only one ball. PART B – Conduct this experiment according to your plan (making modifications as needed), and carefully measure and record your results. Your results and any other notes must be recorded. PART C – Write a detailed experimental report for this experiment, using the proper scientific report format you have learned in your Science course (a summary is included in the supplementary materials).. Submission requirements for all Take Home Written Tasks A. The report will be word processed or neatly written on A4 paper. B. Submitted in a plastic sleeve. C. Length Requirements: 1 to 3 A4 pages including diagrams. D. Assessment sheet must be attached to the front of the task. PART A: Planning Step 1 Obtain a ball (any type that bounces: tennis-, basket-, rubber- etc), measuring tape, marker and a rough book. When you do any rough work, notes, measurements or calculations, it should all be recorded. Step 2 Design an experiment that will test the effects of the height from which you drop the ball on the height the ball bounces up to. Questions you will need to consider when planning this experiment: Will you need someone to assist you with doing this experiment? (It is very difficult to both drop a ball and measure the bounce at the same time). Which are your dependent and independent variables? Which variables will you have to control, and how? You will have to measure distances – how will you do this? What is your hypothesis? (you must have one before doing the experiment) Step 3 Complete the coversheet before doing the experiment. PART B: Conducting experiment. Conduct (do) this experiment according to your plan and record the results in the table provided. PART C: Writing Scientific Report. Write up your experimental report in detail, using the proper scientific report format you have learned in your Science class and that is included with this task. You must choose how to display your results (graphs, tables, etc), and explain any calculations you choose to use. Include both a discussion of your results, and a conclusion to your report. Your report must be typed or neatly written onto A4 sized paper. The assessment task handout must be attached to the written report. Scientific Report Format To achieve high marks, your assessment task must be submitted in the proper format for an experimental report. The following are some guidelines on what the parts of a Scientific Report should contain. Title Write an appropriate title relating to the experiment. Aim The aim describes what you are trying to find out in the experiment. It is usually written as a ‘To’ statement, for example “To find out which battery lasts longest.” Hypothesis This is your prediction of what the results of the experiment will show. It is not a guess – you should have some reasons for making your prediction. You should write this before you do the experiment. Just because you didn’t predict the outcome correctly doesn’t mean you failed – it just means you need to explain why. Equipment/Materials You must include a detailed list of all the materials and equipment that you used in your experiment. Method The method lists the steps you carried out during the experiment. It should be detailed enough that any other researcher could do the experiment exactly the same way you did it. It is usually a numbered list of instructions, ie. a procedure text type. A diagram is often included in the method as it can give a clear, concise description of how any apparatus was set up. Results The results section describes what happened in the experiment. It should neatly show any raw data collected. You can also show the results in a different format that makes them clearer or easier to compare, or makes it easier to see any patterns in the data. A graph is constructed using the results. Discussion This section contains your explanation of why the results are the way they are. This could be your opinions of the reasons behind any patterns you observed, your thoughts as to why the experiment agreed or disagreed with your hypothesis, or any reasons why your results may have been unclear You can also include any comments on the way you did your experiment, and suggestions for doing it better in the future. Conclusion The conclusion explains what you found out. (This is an explanation text.) It should include an answer to the question posed in the aim, and a comment on the hypothesis. Evaluation Identify the problem and describe the strategy to solve the problem. BALL BOUNCING EXPERIMENT MARKING CRITERIA Outcome Question Subheading 5.13 1 Title 5.13 1 Aim 5.13 2 Hypothesis 5.13 3 5.13 4 Equipment Method (design) 5.13 5 5.13 6 5.13 7 5.13 8 5.18 14 Diagram(s) 5.13 9 Independent and Dependent Variables Criteria Appropriate title Inappropriate title Appropriate aim Inappropriate or no aim Appropriate hypothesis Inappropriate or no hypothesis Full equipment list Partial or no equipment list Complete use of all variables to create a fair test Incomplete use of variables No use of variables Correct use of control Incorrect use of control No control Steps in point form and sequenced Either one above correct Neither above correct More than one trial Only one trial Appropriate measurements Inappropriate or no measurements Diagram(s) clearly drawn and labelled Diagram(s) clearly drawn but not labelled Diagram not clearly drawn and labeled Marks 1 0 1 0 1 0 1 0 2 1 0 2 1 0 2 1 0 1 0 1 0 2 1 0 Marks Awarded /1 /1 /1 /1 /2 /2 /2 /1 /1 /2 Results Correct identification of independent and dependent variables One of the above two variables correct No variables or incorrectly identified variables Correct table format Incorrect or no table format Units of measurements depicted correctly Units of measurements not included or incorrectly depicted 2 1 0 1 0 1 5.18 10 5.18 11 5.15 12 Trial data depicted correctly Trial data not included or incorrectly depicted 0 1 0 5.15 13 Average calculated correctly Average not calculated or incorrectly calculated 1 0 5.18 15 5.18 16 Appropriate graph Inappropriate graph No graph Correct title, axes labelled correctly, axes correctly scaled, units correct, points plotted correctly Any four above correct Any three above correct Any two above correct Only one above correct Graph incorrect Analyses results accurately and completely Analyses results accurately but incompletely Analyses results inaccurately but attempted to be thorough Attempted to analyse results No analysis of results 2 1 0 5 /2 /1 /1 /1 /1 5.19 17 Graph Discussion 5.19 18 Conclusion Answers aim and matches results Either answers aim or matches results Inappropriate conclusion or no conclusion 5.18 19 Presentation Scientific title, all sub-headings on this page included, neat, extra effort Any three of the above Any two of the above Only one OR none of the above Identifies the problem (suitable problem chosen to investigate) Inappropriate / unsuitable problem 5.19 19 Evaluation Description of another strategy to solve the problem and an indication of what the solution could be Either a suggested strategy or a solution No other strategy suggested Indicates if new strategy is better than the one used in the report No indication of appropriateness of the new strategy WRITTEN REPORT TOTAL MARKS 4 3 2 1 0 4 3 2 1 0 2 1 0 3 2 1 0 1 0 2 1 0 1 0 /2 /5 /4 /2 /3 /1 /1 /1 /40 PART A: Independent Research task Coversheet 1. What problem do you intend to investigate? ________________________________________________________________________________________ 2. Describe briefly how you think you will investigate this problem. ________________________________________________________________________________________ ________________________________________________________________________________________ 3. What is your hypothesis for this experiment? _______________________________________________________________________________________ 4. Why have you formed this hypothesis? ________________________________________________________________________________________ ________________________________________________________________________________________ 5. Are there variables to consider? If yes what are they? ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 6. Of these variables, which is your dependent variable, which is your independent variable, and which variables are you going to keep unchanged? Dependent Variable ________________________________________________________________________________________ ________________________________________________________________________________________ Independent Variable ________________________________________________________________________________________ ________________________________________________________________________________________ Variables to be kept constant ________________________________________________________________________________________ ________________________________________________________________________________________ 7. What is your control treatment for this experiment? If you won’t be using one, explain why? ________________________________________________________________________________________ ________________________________________________________________________________________ Part B Use the table below to record your results. Height from which Height of the first bounce the ball is dropped Trial 1 Trial 2 (cm) 100 120 140 160 (cm) Trial 3 Average height of the first bounce (cm)