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Sciennce Guide


Revison Help for Test

2             3                        

1.Variables that are described by labels. You should use a bar chart to show this type of data
2.The variable I change to see what happens.
4.Your results must be valid if you are going to be able to draw a conclusion from them. To get valid results you need to carry out a fair test.
5.Errors caused by factors we can’t control, like tiny temperature changes in a room. They can also happen if you make a mistake – like pushing the stopwatch button too early.
6.Errors caused by inaccurate equipment, equipment that doesn’t zero properly or by problems with a method.
7.An investigation or experiment where only the independent variable has been allowed to affect the dependent variable. This means only changing one variable and keeping everything
8.How close a measurement is to its true value.
9.How small a measurement is. Millimetres are more precise than centimetres because they are smaller.
10.If someone else can repeat your measurements and get the same results then your results are reproducible. Carrying out your own repeat measurements checks the repeatability of your results. Repeatable and reproducible results are more likely to be reliable.
1.Variables that can have any numerical value. You should use a line graph to show this type of data.
3.The variable that you measure.

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