Quelpr

CSEC Integrated Science · 2006 · Paper 2

55 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

Practise this paper
  1. 1(a)(i)1 markComplete the word equation for the reaction: Aluminium + hydrochloric acid ->
  2. 1(a)(ii)1 markComplete the word equation for the reaction: Iron + water ->
  3. 1(b)(i)1 markName the chemical process by which rusting takes place.
  4. 1(b)(ii)1 markWrite a word equation for the formation of rust.
  5. 1(b)(iii)2 marksExplain why rusting of the gate has occurred so rapidly.
  6. 1(c)(i)1 markState which of the three materials is likely to have been used in the windows of the bedroom.
  7. 1(c)(ii)1 markState which of the three materials is likely to have been used in the windows of the kitchen.
  8. 1(c)(iii)2 marksGive reasons for your answers in (c)(i) and (c)(ii).
  9. 1(d)(i)1 markSuggest what might have been responsible for the respiratory ailments.
  10. 1(d)(ii)1 markSuggest what might have been responsible for the decline in frequency of the respiratory ailments.
  11. 1(e)(i)1 markUsing the experimental results in Table 1, write the metals in order of increasing activity.
  12. 1(e)(ii)1 markY is non-reactive in hydrochloric acid. Suggest the name of ONE metal which is non-reactive in hydrochloric acid.
  13. 1(e)(iii)1 markWhy was the same volume (5 cm³) of hydrochloric acid added to EACH of the three metals?
  14. 2(a)(i)1 markDefine the term 'energy'.
  15. 2(a)(ii)2 marksName TWO forms of energy.
  16. 2(b)(i)3 marksExamine Figure 1 and state the energy conversion taking place in EACH of the diagrams, A, B and C.
  17. 2(b)(ii)3 marksIn Diagram A of Figure 1, the girl weighs 40 kg and is seated 3 m away from the centre of the see-saw. If the boy weighs 30 kg, calculate at what distance from the centre he should sit to balance each other.
  18. 2(b)(iii)1 markState the class of lever represented in Diagram A of Figure 1.
  19. 2(c)2 marksIf the force applied (load) is 8 N and the effort is 2 N, calculate the mechanical advantage of the bottle opener.
  20. 2(d)(i)2 marksState ONE factor which may contribute to the inefficiency of the car jack shown in Figure 3.
  21. 2(d)(ii)1 markSuggest ONE method that may be used to overcome the inefficiency of the car jack in (d)(i).
  22. 3(a)(i)2 marksState FOUR functions of the circulatory system in humans.
  23. 3(a)(ii)1 markThe heart of a small mammal is pierced by the spear of a hunter. Suggest ONE way in which this wound would lead to the death of the animal.
  24. 3(b)(i)1 markState the MAIN difference between the blood vessels in Figure 4.
  25. 3(b)(ii)1 markIdentify the type of blood vessel that is labelled A in Figure 4.
  26. 3(c)(i)2 marksIdentify TWO of Ben's dietary habits that could contribute to his hypertension.
  27. 3(c)(ii)2 marksSuggest TWO other factors that could have contributed to Ben's hypertension.
  28. 3(c)(iii)3 marksSuggest THREE ways in which moderate exercise can affect Ben's body.
  29. 3(c)(iv)3 marksBen develops a disease that weakens the muscular tissues of his body. Suggest the effect the disease could have on his blood pressure, giving ONE reason.
  30. 4(a)2 marksExplain the meaning of the term 'balanced diet'.
  31. 4(b)3 marksIdentify the nutrients in a ham-and-cheese sandwich.
  32. 4(c)(i)4 marksIndicate which lunch option in Figure 5 would BEST support the dietary requirements of an athlete, giving an appropriate reason.
  33. 4(c)(ii)4 marksIndicate which lunch option in Figure 5 would BEST support the dietary requirements of a pregnant woman, giving an appropriate reason.
  34. 4(d)2 marksDescribe how ONE nutrient in cheese is chemically digested before absorption.
  35. 5(a)(i)2 marksComplete Table 2 by writing the description for parasites for both 'Type of habitat' and 'How they obtain food'.
  36. 5(a)(ii)2 marksName TWO common household pests.
  37. 5(b)(i)2 marksSuggest TWO factors that might be responsible for the increase in the number of flies in the rural community.
  38. 5(b)(ii)1 markIn addition to using insecticides, suggest ONE other method which the residents could use to control the number of flies.
  39. 5(c)(i)2 marksHow could spraying of the new insecticide be responsible for the decrease in produce from the gardens?
  40. 5(c)(ii)2 marksHow could spraying of the new insecticide be responsible for the decrease in the number of fish?
  41. 5(d)(i)a)1 markState the effect reducing the insect population would have on the weed population.
  42. 5(d)(i)b)1 markState the effect reducing the insect population would have on the spider population.
  43. 5(d)(ii)2 marksSelect ONE food chain from the food web in Figure 7 and write it down.
  44. 6(a)2 marksDistinguish between 'reflection of light' and 'refraction of light' by drawing on Figure 8 what happens to the ray of light when it hits EACH surface.
  45. 6(b)(i)1 markIs the actual position of the fish below or above X?
  46. 6(b)(ii)1 markExplain your answer to (b)(i).
  47. 6(b)(iii)1 markWhere should the fisherman aim his spear in order to strike the fish?
  48. 6(c)1 markName ONE method used to catch deep sea fish.
  49. 6(d)1 markWhen white light passes through a clear glass prism, it is split up into several colours. What is the term used to describe this splitting up of the light?
  50. 6(e)1 markRed, green and blue light are primary colours. Explain what is meant by the term 'primary colour'.
  51. 6(f)(i)1 markState what colour you would expect to see in area X.
  52. 6(f)(ii)1 markState what colour you would expect to see in area Y.
  53. 6(f)(iii)1 markState what colour you would expect to see in area Z.
  54. 6(g)(i)2 marksWhat colours would appear on the cloth in red light?
  55. 6(g)(ii)2 marksWhat colours would appear on the cloth in green light?

More CSEC Integrated Science papers