Tuesday's Biology practical was quite alright. There were questions on germination, drawings, fruit reproduction. We were given a snow pea and asked to cut it in half. I cut it longitudinally, and so got the drawing of its seed wrong.
I already lost 4 marks on that and another 2 marks on a "thinking" question. How can we trapped the energy released by the seed? How am I supposed to know? Our teacher admitted that it was a difficult question. The others should be ok, I hope.
The Physics part of today's practical was easy. I finished it in the last 30 minutes, dued to the time I spent on Chemistry. This year's question had something to do with refraction and we already did an experiment similar to this in the past.
The Chemistry part was difficult, not really a killer but I won't do well. I misread the instructions at 1st. I had to redo it 3 times. The next part we were supposed to test for any gas that was evolved. I tested for CO2, O2, H2 and NH3, but none worked. I only knew it from my friend that there was CO2 in the end.
After that, we needed to heat some of the unknown with aqueous cobalt(II) sulphate or something, to get a solid. I got a dark brown solid. After some tests to find out the cation, I concluded that the unknown was Zinc Carbonate. It seemed that this answer was correct. Almost everybody had the same answer.
I truly hoped that today is the last day I will ever start the bunsen burner again. It gives me the jitters just to start it. I nearly got an heart-attack today. I tried it for the 1st, 2nd and 3rd time before it finally worked.
A maths paper 1 on Monday.
2.30pm starts
