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1 markExcretion and Homeostasis

CSEC Integrated Science · 2009 · Paper 2 · Question 3(a)(iii)

A feverish baby has rubbing alcohol applied to her skin, causing her temperature to drop before rising again.

Suggest one reason for the baby's temperature rising again.

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Other parts of this question

  1. 3(a)(i)State one difference between a clinical thermometer and a laboratory thermometer.[1 mark]
  2. 3(a)(ii)State two main processes that occur when rubbing alcohol is used to lower the baby's temperature.[2 marks]
  3. 3(b)(i)Which of the metals expands the least when heated?[1 mark]
  4. 3(b)(ii)Which combination of metals cannot be used in a bi-metallic strip?[1 mark]
  5. 3(b)(iii)Give the reason for your answer to (b)(ii).[1 mark]
  6. 3(b)(iv)Circle which combination of metals will bend the most in a bi-metallic strip: A and B, A and D, or B and D.[1 mark]
  7. 3(b)(v)Give the reason for your answer to (b)(iv).[1 mark]
  8. 3(c)(i)Give two reasons for the inspector's comment regarding poor ventilation.[2 marks]
  9. 3(c)(ii)Suggest two likely effects of the poor ventilation in the office.[2 marks]
  10. 3(c)(iii)Recommend two actions that could be taken to improve ventilation and air quality in the office.[2 marks]

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