A Bunsen burner heats a beaker of water, as shown in Fig. 4.1.
(i) Fig. 4.2 shows the thermometer used in Fig. 4.1.
State the temperature shown on the thermometer.
temperature = .................................................... °C [1]
(ii) The thermometer shown in Fig. 4.2 uses a physical property that changes with temperature.
Indicate the measurable property that changes with temperature. Tick one box.
expansion of glass
expansion of liquid
colour of liquid
colour of glass
[1]
Thermal energy (heat) transfers through the bottom of the beaker to the water.
State the name given to this process.
Thermal energy transfers throughout the water in the beaker.
Describe and explain how this happens.
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