Page 184 - Science Coursebook
P. 184
Reference
15
10
temperature / °C
5
0
0 1 2 3 4 5
number of ice cubes
It’s easy to see that the point at (3, 3) doesn’t fit the pattern of all the other results.
Something must have gone wrong when Rajesh was making that measurement.
When Rajesh draws the line on his graph, he should ignore this result. He should also
think about why it might have gone wrong. Perhaps he misread the thermometer –
was the correct reading 8 °C? Or perhaps he forgot to stir the water and measured the
temperature where the cold ice had just melted. If you think about why an anomalous
result has occurred, it can help you to improve your technique and avoid such
problems in the future.
15
10
temperature / °C
5
0
0 1 2 3 4 5
Ignore the anomalous result
when you draw the line.
182
