Terms in this set (26)
This describes what you think will happen in an experiment
The results and conclusions will be this if the variables are correctly controlled
This is where only the independent variable is changed and the others controlled
A scientific statement that explains certain facts or observations
This is the difference between the values of your independent variable
Information or measurements that you collect
One piece of information
This is an error that is always the same for each repeat - usually because of an error in the equipment used
The smallest change that can be read from a measuring device for example a ruler measured in mm or cm
If the same person can get the same reading using the same equipment and method
A variable that can be described by a label or category such as colour or surface
Variables that remain constant, to make sure that an investigation is valid
This is the variable that is changed during an investigation. There should only be one of these.
A variable which can have any numerical value
This is the variable that changes as a result of a change in the independent variable
The range around a true value. For example 20cm +/-2 cm
The difference between the real value and the measured value
A result that does not fit the pattern
This error causes measurements to be spread around the true value - can be reduced by taking repeats and calculating a new mean
When a piece of measuring equipment
should be reading zero but it doesn't
How close the reading is to the true value
This is determined by the scale on the measuring apparatus e.g. a ruler marked mm is more precise than one in cm
When we make sure that measuring apparatus is making correct readings e.g. the temperature of melting ice is 0 degrees celsius
This is the real value of a measurement in an experiment
If another person can get the same result using the same method and equipment or with different method or equipment.
The maximum and minimum values of the independent or dependent variables e.g. 'from 10cm to 50cm'
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