EST study is easy, but scoring A is difficult. I always see my students all subjects A+ then suddenly EST B and C. check with your pro english teacher how to score it lo.

Geo can study yourself. its quite easy.

cheers,
mrsaimun.blogspot.com

Heating element must have high resistance, both Nichrome and Tungsten are metals with high resistance, therefore there are used as heating elements in blow dryer, filament light bulb and even toaster.

Both of course have higher melting point compared to other metals, making them better metals to be used as heating elements.

As to why we choose higher resistance metal, the concept is Electrical Energy is converted to Heat Energy when current flows through a wire as power/ energy loss. Recall the formula P = I^2R, so the higher the resistance the more power/energy loss to become heat.

*yes there some errors in the marking schemes.

For more reading you can refer to:

http://scienceline.ucsb.edu/getkey.php?key=2548

http://en.wikipedia.org/wiki/Heating_element

cheerio

Paper 2 Essay you should follow the requirement of the question.
They will list it down for you. If they need procedure, you write procedure, if they need observations, you write observations and so on

They won't mark points which is not required by the question.

Usually Paper 2 Chemistry experiment they only want you to write procedure, observation and conclusion from the observation. If its not stated, just write those 3 and more...

The simple rule is, if you have time, write as many points as possible. Increase your chances of getting full marks, just don't write nonsense or not related points.

wah Critical Fallacy... impressive diagrams, where did you find it?

Do they have in high res, can post it up my classrooms... ahah

Good strategy... and also go through more questions, so that you grasp how to write 'perfect answers' in chemistry.

Best of luck