QUOTE(Irfan2397 @ Apr 23 2012, 04:36 PM)
Plant reproduction, human reproduction and the most fcuk :star: Earth resources
Yes . I understand . These are the chapters that require a certain degree of visualisation and understanding . But please be more specific . Which part of plant reproduction ? The parts on seed germination ? Flower pollination ? As for human reproduction , which part ? Contraception ? Menstrual phase ?
For the Earth Resources chapter , it's one of my favourites . At first I was like you : I said that there are too many things to memorise , etc . But actually it' one of the easiest chapters . You don't need to memorise the different names of minerals like bauxite , hematite , etc . You just need to know what happens to certain compounds when they're heated , added water , etc .
For heating of metals , always understand that you need air [ oxygen ] to burn those metals . Therefore when you actually burn metals , such as , say , calcium , the product of course will contain both calcium and oxygen , calcium oxide . The reverse is true if you heat calcium oxide . Heat will break down calcium oxide into calcium , and oxygen escapes [ if you forget , just look at the word oxide which signifies that there there's oxygen in it ] .
What about Calcium Carbonate ? Calcium Carbonate contains calcium , carbon and oxygen . So if you heat it , it will release carbon dioxide gas [ clue - CARBONate ] . The oxygen will remain with carbon . So the product left will be calcium oxide .
There are other compounds as well and you need to understand how they react with heat , acid as well as water [ for carbonates ] .
Knowing them will definitely help . Don't forget about the confirmatory test for gases as well like lime water , litmus paper test , burning wooden splinter . Once you know , it will be incredibly easy . Trust me .
But be specific on which process/processes you're having trouble with so I can pin point on it .
Have fun . And please stop saying that you hate science and science is boring and chemistry is mindfcuk or whatever . What you're learning now is the BASICS of science . If you can't cope with the basics , then what makes you think that you can cope with Economics , Accounts , Add Maths or Commerce in form 4 ? Even if you do choose Arts Stream , what makes you think that you can escape Science ? You'll still have General Science for SPM . So , learn to love it . Nothing is more wonderful than knowing how the world works . Not everybody has the opportunity to learn about chemicals , reproduction of plants , etc .
Well , that's all for now . Hope you got something .