Science Paper left

One more paper to go--- science. I haven't exactly studied for it, the paper i'm least confident of. I'm getting sick and tired of studying and i almost vomitted my dinner out yesterday. Hence, i went to bed early, at 9+. The papers so far are quite ok, nothing too difficult. But i'm worried for tomorrow's science. I haven't studied my biology and chemistry seems only half done. One last paper to go and i'm freed. So, cheers!
All will be revealed soon. I hope it won't be too difficult.