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: Some questions cannot be tested with experiment, but can be investigated. For example; how many legs does an insect have? You cannot do an experiment to find this, you must investigate by going out and catching many insects and counting the number of legs on each to see if it's always the same.
====The right test====
: For a '''Scientific Enquiry''' the [[Experiment]] and [[Investigation]] must test the question.====
: The [[experiment]] or [[investigation]] must be designed well to answer the question. You cannot measure the height of a person by counting the number of toes they have. You cannot find out "how many cans will fit in a shopping bag?" if, in your [[experiment]], you put other things in the bag as well, or the cans are all different sizes, that would not be a [[Fair Test|fair test]].
===Examples===