Honestly if youu2019re doing the class because you have a love for science then writing why you love it will help you get into the class, plus I donu2019t really see the point of writing reasons for you if you know you love science.If you donu2019t especially enjoy science but are doing it because you want to look good for college admissions or any other reason Iu2019d recommend some physics jokes. (I mean if a kid told me some jokes not only would I remember them, but if theyu2019re a good kid it wouldnu2019t hurt to have a sense of humor for class.) Take an honest standpoint and say that you donu2019t like science, but youu2019ve always respected it and admired it from afar and that youu2019d like to learn to love it. Science is wicked cool anyways, just remember to add that youu2019ll try your best and that it would mean a lot if you could have the opportunity to take the class.