Author Topic: cie bio, chem, phy  (Read 1354 times)

Offline fiftysix

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cie bio, chem, phy
« on: October 22, 2012, 10:53:26 pm »
hi need help..will b appearing for bio, chem, phy in may 2013, only have sum months left .. i do self study can any1 give me tips .. how to get good grades..

Amelia

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Re: cie bio, chem, phy
« Reply #1 on: October 23, 2012, 03:45:56 pm »
1) Dont waste time
2) Understand all concepts of your subject courses.
3) Dont miss out on anything, solve past papers as much as you can
4)Study, study, memorize whatever you can, and study

~ there are many reference information and questions asked and answered by previous students, you can go through the ALevel pages here for assistance. If you need more help, post your questions in the related threads.

Enjoy your stay.

Offline MalloryKnox

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Re: cie bio, chem, phy
« Reply #2 on: October 24, 2012, 04:33:18 pm »
-Drawing: you will be asked to draw diagrams of fruits, insects..etc. in the exam. Make sure it's in pencil, drawn to the correct size, has definite outlines (no 'sketchy' lines), no shading, no arrow heads when labelling and make sure lines point exactly at the labelled part.

-Comparisons: Make sure the points you use to compare diagrams are visible in the diagrams. Use labels on the diagrams as your guide. And don't compare sizes unless you're given a scale. You can compare numbers shape and proportional sizes.

-Designing an experiment:
*Find the variable which is to be changed (from the question) and mention how you are going to change it (ex: to change temperature, use thermometer-controlled water bath at temperatures 10 to 50 degree Celsius).
*List all variables that you have to keep constant throughout the experiment (ex: room temperature, volume of water, insect species). Make sure there's only one variable for the investigation.
*Mention how long your experiment will last.
*Say how you will measure experiments' results (ex: if you're examining presence of starch, say that the food sample which turns the iodine solution a deeper blue contains more starch)
*Finally: say 'repeat experiment to get more reliable results and minimise error. It's guaranteed to gain you marks.
*If you can, set a control for your experiment. (ex: use boiled enzyme in an experiment to test for enzyme activity)

-Drawing a graph: take care of labels of axes, units, scale, using 'cuts' if needed. Always join points using a ruler unless asked to do otherwise (ex: line of best fit)

-Remember the rule: magnification: drawing/real

-Make sure you know how to test for the presence of water, oxygen, carbon dioxide, starch, reducing sugar, proteins, fats, acid and alkali.

-Look at the experiments in the past papers and make sure you understand them well, as this will help you a lot.

Finally, try answering a couple of exams from the past papers. They're sure to give you a good idea of what to expect, and will certainly boost your confidence :)
Pro-Life: (adj)
The radical idea that babies are people too.

Offline fiftysix

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Re: cie bio, chem, phy
« Reply #3 on: October 29, 2012, 10:10:52 pm »
thanks i hope this will help me alot

Offline MalloryKnox

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Re: cie bio, chem, phy
« Reply #4 on: October 31, 2012, 01:49:42 pm »
no problem, good luck :D
Pro-Life: (adj)
The radical idea that babies are people too.