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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| show | what you see changing as a result in the experiment
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| hazard | show 🗑
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| show | the consequence of a hazard – including how LIKELY and how SERIOUS are the consequences, e.g. using Bunsen burner with loose long hair = moderate to high risk
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| precaution | show 🗑
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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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| show | anything that can change and that might make a difference in an experiment
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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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| range (of independent variable) | show 🗑
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| full / appropriate risk assessment | show 🗑
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| repeatability | show 🗑
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| show | indicated by the spread of results obtained by DIFFERENT operators using DIFFERENT equipment / arrangement(s)
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| outlier | show 🗑
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| spread of data | show 🗑
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| scale | show 🗑
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| show | SHOWS the PATTERN of the results; can be straight of a smooth curve; not fuzzy, not wiggly, not thick; does not NEED to touch any point at all.
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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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