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C21 GCSE Investigation keywords

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
show prediction that can be tested by experiment  
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prediction   show
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show what you choose to change in the experiment  
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dependent variable   show
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hazard   show
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risk   show
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show something you can do to reduce the risk, e.g. tie back long hair (reduce likelihood), wear goggles (reduce seriousness of injury in event of chemical spraying out)  
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show many measurements have units, e.g. newtons for force, metres for distance – write the units in the column headings in results tables  
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show all the variables that pretty obviously might make a difference  
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variable   show
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show a prediction based on a mathematical relationship, e.g. proportional to, inverse proportional to; or including numbers, e.g. it will peak at about 40˚C  
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show indicated by a small spread in the repeat readings  
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show a measurement that is close to the TRUE VALUE is accurate  
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show all the different values of the independent variable (usually in the left hand column in the results table)  
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full / appropriate risk assessment   show
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repeatability   show
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reproducibility   show
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outlier   show
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spread of data   show
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scale   show
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line of best fit   show
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show one that shows ALL the recorded results, not just the mean (or mean plus range bars)  
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limitations of equipment   show
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show e.g. was it difficult to take the reading, capture all the gas, make sure the temperature really stayed the same throughout, line up the ruler with the other equipment?  
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show suggest genuine reason that could explain e.g. why that reading was higher than expected (or lower than expected)  
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show any results that did not come from YOUR experiment  
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show exam board data; another group in your class; internet / text book – can be a mathematical model, a computer simulation, a graph, a table of results etc  
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Created by: allydavies
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