1. How Science Works Precision Science at SUS
The amount of scatter around the mean
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2. How Science Works Accuracy Science at SUS
How close a measurement is to its true value.
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3. How Science Works Random errors Science at SUS
Errors caused by readings spread around the mean value e.g faulty or inconsistent measuring techniques
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4. Systematic/Zero errors
How Science Works
Systematic/Zero errors
Errors caused by inaccurate equipment, equipment that doesn’t zero properly or by problems with a method.
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5. How Science Works Reliability Science at SUS
Carrying out repeat measurements checks the reliability of your results.
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6. How Science Works Control Science at SUS
Effect your results of an investigation and MUST be kept the same.
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7. How Science Works Independent variable Science at SUS
The variable you change to see what happens.
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8. How Science Works Dependent variable Science at SUS
The variable that you measure.
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9. How Science Works A fair test Science at SUS
This means only changing one variable and keeping everything else the same.
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10. How Science Works Valid Science at SUS
Evidence that directly answers the question
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11. How Science Works Continuous variables Science at SUS
Variables that can have any numerical value. You should use a line graph to show this type of data.
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12. How Science Works Categoric variables Science at SUS
Variables that are described by labels. You should use a bar chart to show this type of data.
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13. How Science Works Resolution Science at SUS
The smallest scale division of a measuring instrument e.g. most rulers have a resolution of 1mm.
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14. How Science Works Range Science at SUS
The interval between the highest and the lowest value e.g cm
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15. How Science Works Linear relationship Science at SUS
A relationship that produces a straight line on a graph
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16. How Science Works Anomalous results Science at SUS
Can be spotted from data and excluded
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