You may be in more trouble than you think. If you were "bored" and drawing on your hand with 40 mins left in a SC exam, it may be considered a non-serious attempt. It may also be seen as a distraction to other students if they see you doing it.
There are many reasons that may be considered a...
No, School Certificate mainly focuses on Year 10. Probably about 15% Year 9, 5% general science knowledge (Identify a beaker, test-tube, etc), and 80% Year 10.
P.S. don't just prepare a story for the SC. My English paper asked for a speech.
SC 2006
Maths - 94
Science - 90
History - 91...