As teachers, what factors differentiate teaching Science from teaching other subjects?

I have
been teaching science since 1981. What differentiates teaching this discipline from others is
that it must be hands-on as often as feasible to illustrate concepts that may be difficult to
explain verbally or by reading text. The most meaningful learning takes place when students
apply the concepts they learned in an experiment. Therefore, although teachers in all areas need
to differentiate their lessons in terms of the type of learners they have in their
classrooms-auditory, verbally, kinestheically, etc, in science, it is extremely meaningful when
students can do trial and error learning, and come to their own conclusions about a concept from
the curriculum.