Lena heats a liquid. She wants to know its boiling point. She measures its temperature every minute. a Complete the column headings in Lena’s results table. (min) (ºC) (2 marks) b Lena plots her results on a graph. I) Finish labelling the graph axes by writing one word on each line. (2 marks) ii Tick one box to describe what is happening at point A on the graph. The substance is melting. The substance is boiling. The temperature of the substance is increasing. The temperature of the substance is decreasing. (1 mark) iii Use the graph to give the boiling point of Lena’s liquid.
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Answer:
it's boiling point is 100°C
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Answer:
it's boiling point is 100 degree celcius.
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