3. Results

Table Representation



Day 0 (1 day of incubation)

Control 01
Control 02
Metal 01
Metal 02
Plastic 01
Plastic 02
Recyclable 01
Recyclable 02
NIL

no bacteria visible to human eye.



-----------
White

1(1 x 0.9)

circular

flat

entire
----------
NIL

no bacteria visible to human eye.



----------
NIL

no bacteria visible to human eye.



-----------
White

overgrown

filiform

flat


--------------
Yellow

14(0.1 x 0.1)
White

45(0.1 x 0.1)


flat

entire
----------
NIL

no bacteria visible to human eye.





---------------
White

2(0.1 x 0.1),





entire
---------------
Table 1


Day 2 (2 days of incubation)

Metal 01      
Metal 02
Plastic 01
Plastic 02
Recyclable 01
Recyclable 02
White

overgrown (4.8 x 3.5)



flat

entire
----------------
Yellow

overgrown (5.4 x 0.4)

flat

entire
Yellow

9(0.4 x 0.4),


circular

flat

entire
----------------
Red

1(0.1 x 0.1)


flat

entire

circular
White

6(0.3 x 0.3)

circular,

flat

entire
-------------
Yellow

9(0.4 x 0.5)

circular

flat

entire
-------------
White

overgrown
(8 x 5.8)

circular

flat

entire
------------------
White

4(0.8 x 0.8)


circular

flat
entire
------------------
Table 2

Analysis

Adding up and finding the average colonies of bacteria in the pairs of agar plates for each type of water bottle, it will be represented in a graph. The overgrown colonies of bacteria in our experiment will be represented as 50 units of colonies each.


Graphical Representation

Fig. 1


Observations

It is evident that although the metal tumbler had cultivated no bacteria to begin with, it also had the fastest growth rate of bacteria. There were high numbers of bacteria in the plastic mug to begin with, though the plastic bottle also had the slowest growth rate of bacteria. Thus, the metal tumbler had the fastest growth rate of bacteria, not the plastic mug, proving our hypothesis false.

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