Lena, Baronica and Colin have been looking at ....
How Acidic is the Water In our School?
In this experiment we are trying to find out if the water in our school is pure water, with a PH of 7.
Method:
- Collect water from different parts of the school
- Pour an equal amount of the different types of water in test tubes
- Examine the colour, using a white paper behind to help
- Add PH paper in to the liquid
- Find out the PH, using PH card and find out the colour.
Independent Variable: Water
Dependent Variable: PH of Water
Control Variable: Amount Of water
|
Type Of Water |
Original Colour of water |
PH |
Colour of water with PH paper |
|
Girls Bathroom G/F |
Clear |
7 |
Light Green |
|
Boys Bathroom G/F |
Clear |
7 |
Light Green |
|
Science Lab 256 |
Clear |
9 |
Dark Green |
|
Girls Bathroom 2/F |
Clear |
7 |
Light Green |
|
Boys Bathroom 2/F |
Clear |
7 |
Light Green |
|
Girls Bathroom 3/F |
Clear |
8 |
Green |
|
Boys Bathroom 3/F |
Clear |
7 |
Light Green |
|
Water Fountain |
Clear |
7 |
Light Green |
Lena Chen, Baronica Cheung, Colin Chan
Results:
These results were unexpected, we expected that the water would be more acidic than alkaline. None of the results were acidic they were either neutral or alkaline. The most alkali water was in the science room 256.
