When scientists take experiments as their basis in order to establish laws which are consistent with what has been observed, they are said to use an inductive method.
Are there then scientists who do not experiment? Yes there are, in fact one of the most important scientists, Einstein, is more famous for his reasoning and theories than for his "experiments".
Starting with the following simulated experiment you can get to deduce the type of movement shown by a car from which oil is dripping at regular intervals.