Had my chem lab yesterday...it was quite fun as we were required to build our own so called 'submarine'. It's by using this small bottle then you have to put coins in so that it can sink to the bottom of the measuring cylinder. Then we were given citirc acid and sodium bicarbonate to make it float up by itself. So got to figure out how much amount of the both chemicals to add so that the 'submarine' can float up by itself after sinking into the measuring cylinder. It was quite fun but it's a hassel cos have to measure the chemicals so so many times...our whole table had fun...all of us cracking our heads and think of the solution...haha...suddenly all became so kan chiong and with eileen's expression, it's like we are going for a race or something...everyone was getting ready with their own stuff to add in the bottle. So funny....mich says it's like running a race then the gunmen say "on your mark, get set, go!" HAha....anyway, i just realised that i answered my marketing questions wrongly and i have to present it today...luckily today i start class at 1. So can redo it now...