Pls download the respective syllabus and the assessment rubric in PDF file format from the "Attachments" panel below.
For Sec 4 Express and 5 Normal (Academic): 4E5N-syllabus-7051_2010.pdf
For Sec 4 Normal (Academic): 4NA-syllabus-7051_2010.pdf
For Sec 4 Normal (Technical): 4NT-syllabus-7051_2010.pdf
These documents spell out the topics to be tested, the examination format and the weightage for each component. It is an official document by SEAB.
The syballus can also be found at SEAB website. See Home page for the link.