(a(i))[2]
Thermometer Y does not show 24 ^{\circ}C. Explain why the readings on the two thermometers are different.
(a(ii))[1]
Suggest a possible reading for thermometer Y.
(b)[4]
Describe how the student can show convection in a liquid using the equipment in Fig. 6.2. You may include a diagram in your answer.