Why are scientific method important in the study of science

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

Mr. rose asked his student to draw a quadrilateral with four unequal sides. an example of this kind of quadrilateral

Is water wet? my friends are debating.