Fill in the Blanks The Scientific MethodOnline version Test your knowledge of the scientific method. by Stephanie Franco 1 dependent control data variable independent hypothesis scientific data method qualitative experiment conclusion variable data quantitative A is a systematic approach used in scientific study to do research or to verify the work of others . Usually , the first type of observation made by scientists are - information that describes color , odor , shape or some other physical characteristic . Scientists frequently gather another type of data such as the quantity of chemical formed or how much of a chemical is used up in a reaction . This numerical information is called . A is a tentative explanation for what has been observed . A hypothesis means nothing unless there is to support it . An is a set of controlled observations that test the hypothesis . In an experiment , the is the variable that the scientist plans to change . The value depends on the independent variable . A is a standard for comparison . Scientists take the data that have been analyzed and apply them to the hypothesis to form a .