2019 Year 12 IB Extended Essays

Table 7: Raw data of the height of Wheatgrass on Day 10 Chemical used Sodium Chloride Trials 0M 0.0068M 0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5

9.4 8.4 9.0 8.5

9.2 9.5 7.5

8.9 7.6 9.1 8.9 7.1

4.9 6.6 6.9 7.2 6.5

0.1

0 0 0 0

10.8 10.4

10.6

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

12.6 12.6

13.5 13.9 13.4 14.9 12.8

12.9 15.8 13.9 15.8 16.0

16.1 15.5 15.4 14.1 16.7

12.9 15.4 16.4 15.4 15.9

8.4

11.9 12.5

Table 8: Raw data of the height of Wheatgrass on Day 12 Chemical used Sodium Chloride Trials 0M 0.0068M 0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

9.9 8.7 9.6 9.2

9.9 9.6 8.2

9.4 8.1 9.2 9.4 7.5

5.6 7.2 7.4 7.6 7.1

0.1

0 0 0 0

11.1 11.1

11.2

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

13.3 13.6

14.3 14.4 13.9 15.4 13.4

13.4 16.1 14.7 16.4 16.6

17.0 16.1 16.4 15.0 17.4

13.7 16.3 17.2 16.1 16.5

9.3

12.3 12.9

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