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.
Help!
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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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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
allydavies
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