Results: Compile results from the whole class. Compare and contrast.
1. Surface:
Locker lock
Cleaning
product:
Tea tree oil
2. Surface:
Locker Lock
Cleaning
product:
Windex
3. Surface:
Plastic Display
Board
Cleaning
product:
Isocol
Observations
A
Total No. of
11
colonies
No. of types of
4
colonies
Largest colony  2mm
Orange, yellow and
Colour/s
white
Circular
Shape/s
Total No. of
9
colonies
No. of types of
5
colonies
Largest colony  1-2 CM
Blue, Yellow,
Colour/s
Orange
Circular
Shape/s
Total No. of
7
colonies
No. of types of
5
colonies
Largest colony  2mm
Green, white
Colour/s
Shape/s
4. Surface:
Benchtop
Cleaning
product:
Ajax
5. Surface:
Inside of safety
glasses
Cleaning
product:
Organic Choice
Circular, entire,
small
50+
Total No. of
colonies
No. of types of
5
colonies
Largest colony  5mm
Green, Yellow and
Colour/s
Blue
Circle
Shape/s
Total No. of
8
colonies
No. of types of
4
colonies
Largest colony  3mm
Green, grey, orange,
Colour/s
yellow
Completely circular
Shape/s
B
0
0
0
0
0
20-30
3
5 CM
Orange, Yellow,
White
Round Oval
2
2
1mm
White, green, tan,
orange
Glistening, raised
5
2
10mm
Black and White
Circle
13
3
7mm
Tan, orange, grey
Completely circular
6. Surface:
wall
Cleaning
product:
Organic choice
7. Surface:
Door handle
Cleaning
product:
Pine Clean
8. Surface:
windows
Cleaning
product:
windex +
ethanol
Total No. of
colonies
No. of types of
colonies
Largest colony 
Colour/s
Shape/s
Total No. of
colonies
No. of types of
colonies
Largest colony 
Colour/s
5
20+
2
2
2mm
Yellow, peach
Circular
19
3mm
Yellow, peach
Circula
8
2
2
1cm
Cream, yellow,
orange, pink, white
Circular, irregular
4
5mm
Yellow, orange,
cream, white
Circular, irregular
5
Shape/s
Total No. of
colonies
No. of types of
4
colonies
Largest colony  1cm
White, cream
Colour/s
Irregular, circular
Shape/s
3
5mm
Black, cream, white
circular