2019 Year 12 IB Extended Essays

Table 5: Raw data of the height of Wheatgrass on Day 6 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

8.2 7.1 7.7 7.3 9.7

7.9 8.8 6.1 9.9

8.0 6.9 8.2 7.9 5.8

3.9 4.7 4.8 4.9 4.5

0.1

0 0 0 0

10.0

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

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

12.1

11.1

10.2 12.8 10.1 10.4 10.9

12.2 13.6 12.3 11.2 13.5

13.4 12.8 14.8 13.0 13.4

8.9 7.8 9.9 9.0

7.8

12.5

9.1 9.3

Table 6: Raw data of the height of Wheatgrass on Day 8 Chemical used Sodium Chloride Trials 0M 0.0068M 0.0274M

0.1095M

0.4381M

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

8.6 7.3 7.9 7.5

8.8 9.2 7.1

8.5 7.2 8.4 8.5 6.5

4.2 6.4 6.5 6.5 6.1

0.1

0 0 0 0

10.3 10.3

10.1

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

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

12.4 12.1

12.8 13.5 12.5 14.6 11.5

12.3 15.2 13.2 15.0 15.2

15.2 14.9 14.8 13.2 16.0

12.2 14.8 15.8 14.7 15.2

7.9

10.9 12.3

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