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  1. S

    Question relating to today's ATP

    We can discuss it now. So what were your values for the uncurled length of the seedling? I got 84 and 78 cm..how large we're your drawings btw? We're they exactly twice the original length??
  2. S

    Biology; Chemistry; Physics: Post your doubts here!

    No no notice how the liquid level is marked at the bottom when it should be at the top? That's the error!
  3. S

    Biology; Chemistry; Physics: Post your doubts here!

    How will u describe the observation in a 3 mark question. K and na turn red hot because of the great amount of heat produced, they dart rapidly over the surface...what else should we write? How do calcium and iron react?
  4. S

    Biology; Chemistry; Physics: Post your doubts here!

    Do transition metals give any reaction with water? And could someone tell me the observation when alkali metals are reacted with water
  5. S

    Biology/Physics ATP Preparation Thread

    Why does the sample have to be kept in a dry test tube? How will that interfere with the test? I know it'll definitely give a white emulsion if the restive contains moisture, but why??
  6. S

    Biology; Chemistry; Physics: Post your doubts here!

    Wait I don't get where the radicle and plumule are located in that we'd :s are they the structures in the middle?
  7. S

    Biology; Chemistry; Physics: Post your doubts here!

    You'd have to use a small piece of the tissue. You could use a potato, but I'd go for a softer,easily removable plant tissue [like onion epidermis]. External blotting helps dry the tissues up, for fair testing
  8. S

    Biology; Chemistry; Physics: Post your doubts here!

    You tie the piece of cloth to the mouth of the beaker, securing it with the threads. Measure the temperature at regular intervals. Then, take another such cloth and dampen it using water from the tap. At the same intervals as in the previous experiment, take the thermometer reading. Compare the...
  9. S

    Biology; Chemistry; Physics: Post your doubts here!

    Could someone explain the difference in blood pressure in the arteries, the heart, the veins & the capillaries?
  10. S

    Biology; Chemistry; Physics: Post your doubts here!

    How do we know whe ln to draw a curve, a line of best fit and a line joining all the points by drawing straight ruled lines? In all three science
  11. S

    Biology; Chemistry; Physics: Post your doubts here!

    Why do Why do we assume y and x are equal in the first half?
  12. S

    Word linkage......

    yearn
  13. S

    BiologyQuestion

    Um...it says in the book that the cerebellum of the brain controls muscular coordination and body balance. What is body balance. If we write locomotion and movement instead, will it be marked correct, or is body balance something entirely different?:unsure:
  14. S

    Add Math help!

    I still don't get it. Why do we multiply with 5 in the first part? :confused: and could you explain the 6*5 bit in the second part again? :unsure:
  15. S

    Add Math help!

    Could someone explain question 7 from http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20O%20Level/Mathematics%20-%20Additional%20%284037%29/4037_s06_qp_2.pdf to me? It's on permutation/ combination. Also, when do we use combination instead of permutationm and vice versa? I...
  16. S

    Add-maths question

    Do you remember how you got that?
  17. S

    English Language notes and tips needed!

    Could someone give me some advice on how to ace the language exam, especially the summary portion? A handful of people on xpc claimed that we could write points well above 15 in number, but my language seems to have a contradictory view. She told us to write dead on 15 points as the cie...
  18. S

    Add Math help needed!

    You take math tuition? Who do you suppose is the best tuition teacher for math?
  19. S

    Add Math help needed!

    celoth scouserlfc Haris Bin Zahid Listen could any of you solve this question, it's on loci (math) : Construct ABC in which AB = 8 cm, BC = 7.5 cm and AC = 6 cm. On the same diagram, construct a) the locus of point P on the same side of AB as point C and such that the area of APB = area of ACB...
  20. S

    Add Math help needed!

    Ugh I haven't started with sets in add math, I was hoping it would be as easy as it is in math :P guess I was wrong o_O Well I don't exactly know how to solve it, but I do know that xy = 2y if y is equal to 6. B is most likely to be the subset of A, but that would leave out x and a simultaneous...
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