The table below is the results to my to trial one of my experiment. Trial 1 didn't turn out the way I planned. Plant 4 (pH 7.5) didn't grow as well as it should have.
I used toothpaste and diluted it with water. However the substance was still too thick, which is the main reason why it didn't
grow very well. Plant 3 (pH 7.0) grew the best, the next was plant 5 (pH 8.5). However as pH 7.5 is closer to neutral, it
should have grown better. This is why in trial 2 of my experiment I used pond water as pH 7.5. This worked better
and the results for trial 2 were more accurate. I also included took digital photos of my plants
which i took twice a week. This was another way I recorded their progress. I took both individual and group photos of
my plants, so you can not only see there progress individually, but you can compare their heights with each other.
Results Table Trial 1
Day |
Height (cm) |
Plant 1 (pH 4.5) |
Plant 2 (pH 6.0) |
Plant 3 (pH 7.0) |
Plant 4 (pH 7.5) |
Plant 5(pH 8.5) |
1
3
5
7
9
11
13
15
17
19
21 |
13.0
13.0
12.7
12.5
12.5
13.0
13.5
13.7
13.6
13.5
13.5 |
13.0
12.8
12.5
12.8
13.0
13.0
13.0
13.0
10.5
10.5
10.0 |
13.5
13.5
14.3
15.5
18.0
19.0
20.2
20.2
21.2
22.6
22.6 |
14.0
13.7
13.3
13.0
13.0
13.5
13.5
13.7
14.0
14.0
14.0 |
13.5
14.0
14.0
14.4
15.8
16.5
16.7
17.1
18.0
18.0
18.0 |
|