my science paper fell...=(

today teacher gave us back some of the exam paper including history, maths and science. I am satisfy with my history and maths, but my science paper fell! I just got 30 marks over 100 marks!!! Last exam my result also 40 marks but this time only 30 marks! I really scare my mum will scold me and want me go tuition, I hate going tuition that is very boring. Last exam paper I also didn't let my mum see cause I really scare my mum will angry and scold me. Even my report card I ask my sister to help me sign. Now my prayer is different again, not focusing on my exam but my mum will understand that I already done my best. This is the first time I study in my whole life and I just keep study but dunno why I just can't remember what I have read. I enjoy having science class especially do experiment but I don't like those things need to remember in books.