2019 Year 12 IB Extended Essays

Graph 1: Mean Height of Wheatgrass when grown in different concentrations of NaCl over a 20-day period

Mean height of Wheatgrass grown in different concentrations of Sodium Chloride

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12

10

4 Height of Wheatgrass/cm ( ± 0.05 cm ) 6 8

2

0

0

2

4

6

8

10

12

14

16

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20

Time in Days

0M 0.0068M 0.0274M 0.1095M 0.4381M

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