sample experiment following the scientific method step 1: purpose: ask a question would eating carrots everyday help improve eyesight? step 2: do background research or gather information has anyone asked this before? what other research has been done on this subject? example: get data about same experiments and their results called abstracts on vision improvements on carrots step 3: construct a hypothesis remember that hypotheses are tentative (not certain) and testable; they must be supported by observational evidence; and tested over a variety of conditions which can turn them into theories. if i eat 6 carrots a day for 1 year, then my vision will improve. step 4: test your hypothesis with an experiment -gather 3 groups of randomly chosen people with similar eye health -have all subjects undergo a vision test at the start of the experiment -have group 1 eat no carrots a day for 1 year -have group 2 eat 3 carrots a day for 1 year -have group 3 eat 6 carrots a day for 1 year -get all subjects a vision test at regular intervals throughout the experiment step 5 and 6: analyze data and draw conclusions -group 1 showed a -2% improvement in vision 11 -group 2 showed a 1% improvement in vision -group 3 showed a 3% improvement in vision conclusion: eating carrots every day have a positive effect on vision in humans step 7: report your results and conclusion. was your hypothesis correct ​