2019 Year 12 IB Extended Essays

Results : Sample Raw Data: Table 12: Sample Raw data of the height of Wheatgrass on Day 20** 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

11.7 10.8 12.3 12.4 13.4 14.3 14.6 10.9 13.4 14.3

11.5 11.7 10.9 13.5 13.9 17.1 16.1 16.3 18.1 15.7

10.3

6.9 7.9 8.1 8.7 8.0

0.1

9.3

0 0 0 0

10.1 10.1

8.8

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

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

15.3 18.2 17.1 18.2 18.4

19.1 18.4 18.7 17.9 19.8

16.7 19.9 19.4 19.0 20.1

**Refer to Appendix #2 for all the Raw Data

11