Jawapan

2015-08-17T17:39:21+08:00
Buy an exercise books and fill all the anwers just like your having an exam (real exam). hope it would help you hehe. 
2015-08-18T18:36:41+08:00
Do some simple notes. just like mathematics, you also should practise science everyday since there're so many thing to remember especially topic 6 and above