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ISA Preparation Plymstock School P.J.McCormack 17 July, 2015 Apparatus Setup List all the apparatus in the diagram opposite that is required for your investigation. Compare your observations with the person next to you and discuss how you can improve your list. P.J.McCormack 17 July, 2015 Marking Criteria What key point are we going to include? P.J.McCormack 17 July, 2015 Key Questions. 1. 2. 3. 4. 5. What was the independent variable? What was the dependent variable? What safety precaution must you make? Name two variables that you must control. How would repeating my experiment affect my results? 6. How would comparing my results with some else improve my results? P.J.McCormack 17 July, 2015 Background Research. Name two sources that you used for your research. This can be a: • Textbook (mention the publisher) • The internet. You need the full web address such as…. www.rsc.org.uk /alchemy/limestone P.J.McCormack 17 July, 2015 Background Research You must explain which one of your sources of information is the most useful. You must comment on both, such as… Source 1 gave me a complete method of what to do. Source 2 gave me information about how solar cells work and what affects how much voltage they make. P.J.McCormack 17 July, 2015 Control Variable and Preliminary Test. This is where you plan what you would do and how it would help you produce a real plan. In this question mention how the results you gather would help you such as….. I would adjust the independent variable each time to see if it made a measurable difference to the dependent variable, if not I would adjust the equipment (be specific). P.J.McCormack 17 July, 2015 The Plan. • Equipment with volumes, sizes and amounts • Mention two variables that must be kept the same in order to make the investigation a fair test. • Mention the independent variable and how this will be varied and the dependent variable. • Risk assessment, what are the risks and how can they be controlled. • You may bullet point your method as long as it is well structured in a logical sequence. Check your spelling, punctuation and grammar and use technical/scientific terms P.J.McCormack 17 July, 2015 Comparing Results. Explain the advantage of sharing results with others? Reproducibility – measurement repeated by another person, or by using different equipment or techniques and the same results are obtained. If all the class results are shared then we can calculate a mean and that would give us a more accurate result. If the results are reproducible I must have carried out the test correctly. P.J.McCormack 17 July, 2015 Q5. Results Table Independent Dependent variable Variable (unit) (unit) P.J.McCormack 17 July, 2015 Sketch Graph • A line graph that shows the general pattern and the relationship between the two variables. • Sketch graphs do not need to have a scale or points plotted but they must have labelled axis. P.J.McCormack 17 July, 2015 Sketch Graph P.J.McCormack Example ISA’s with Examiners Comments 17 July, 2015 http://store.aqa.org.uk/sciencelab/AQA-CHEM1-EXEMPLAR-CA-AV.PDF http://store.aqa.org.uk/sciencelab/AQA-BIOL1-EXEMPLAR-CA-AV.PDF http://store.aqa.org.uk/sciencelab/AQA-PHYS1-EXEMPLAR-CA-AV.PDF http://store.aqa.org.uk/sciencelab/AQA-CHEM1-EXEMPLAR-CA-HI.PDF http://store.aqa.org.uk/support/pdf/AQA-SCIENCE-CONTROLLEDASSESSMENT-LEAFLET.PDF http://store.aqa.org.uk/sciencelab/AQA-PHYS1-EXEMPLAR-CA-HI.PDF P.J.McCormack 17 July, 2015 Measles (000's) Mumps (000's) Rubella (000's) P.J.McCormack