WFP Plant Growth

By:

Liz Kubis

Madeline Kulp

Ben Devlin

Zach Cagni

Variables we Controlled

Amount of fertilizer Amount of light Amount of water Amount of space

Problem

Will purple food coloring in the plant’s water change the color of

the plant?

ProcedureWe experimented the

variable by putting 5 drops of purple dye into the water in16 plants and

plain water in the other16 plants.

Hypothesis

If we put our experiment plants on a watering system with purple dye and our control plants on a normal water system we will agree witch will grow more.

Seeds

This graph shows the average number of seeds of the control and experimental plants.

0

20

40

60

80

100

120

control experimental

seeds

seeds

Plant Height

This graph shows the average height of the control and experimental plant height over time.

Plant Height over time

0

5

10

15

20

25

1 2 3 4 5 6 7

Number of observations

Height of plants

control

experimental

Leaves

This graph show the average number of leaves on the experimental and control plants.

0

10

20

30

40

50

60

Experimental Control

leaves

leaves

Conclusion

We thought that if we put our experimental plants on a watering system with purple dye and our control plants on a normal watering system, then our experimental plants will stay the same, but their leaves and flowers will turn purplish. We found out that the purple food coloring made the plants grown just the same. Our data showed that the experimental plants had a total of 22 less leaves then the control plants, 11 more flowers, 57 more seeds, 14 less seed pods and the control plants were 1.4 cm taller than the experimental plants. We think that because some of our plants go hit with a folder and other plants were left off the watering system, our results may have been thrown off. In the future, we would like to put plants in water mixed with paint to see if the paint will effect the plants.