There is none
An important step in a scientific investigation is forming a hypothesis.
Cameras collect data in a scientific investigation.
relationship between scientific and philosophical method of investigation
Because you repeat investigation to look for errors.
A hypothesis is tested in a scientific investigation.
Bureau of Supernatural Investigation
Scientific Method
scientific method
an investigation of a problem
Using a balance to measure mass might be part of a scientific investigation, but by itself and under ordinary circumstances it does not amount to a scientific investigation. If you are on a different planet or on a moon, or if you were in the weightlessness of space, then doing this (or trying to do it) might be considered a kind of investigation.
A scientific investigation is a method of identifying a question through observations. Next, a hypothesis is formed as a tentative explanation for the question. Third, experiments are performed to test the hypothesis. Finally, a scientific paper is written to explain the conclusions.
Its ability to generate reliable and valid results, adhere to ethical standards, and be subject to peer review and replication by other researchers.