WATER QUALITY TESTING Northlandswood School

8th June 2015

WHAT WE DID:We looked at 4 different types of water:Bottled waterFlavoured waterTap waterSpriteWater from the local reservoir.

We then tested the water looking at measuring:TemperatureDissolved oxygenNitratePhosphatepH level

This measurement gave us a score we could then compare the different waters.

RESULTS:

A TABLE SHOWING THE DIFFERENT SCORES FOR THE WATER TESTING.

Type of water Score (test

1)

Score (test2

)

Water quality index

Bottled water 11 10 3

Tap water 10 10 3

Water from reservoir

14 12 3

Sprite 9 10 2.5

Flavoured water 11 - 3

WHAT WE FOUND OUT:

We know that bottled water is safe to drink and that meant that a score of around10 would be ok to drink. That meant tap water , sprite and flavoured water, which also scored around ten, would also be ok to drink . However the reservoir water scored a higher score which meant it needed to be purified before drinking .

To be even more accurate there are more tests we could do. This would give us a very accurate measurement.

WHAT WE DID NEXT:We then contacted two other schools in other parts of the world and compared some of our results to theirs.The two schools were in Russia and Nigeria.They were:

Country: RussiaCity: Novuy UrengoySchool Name: Novuy Urengoy's Professional College

Country: NigeriaCity: Port HarcourtSchool Name: Niger Delta Science School

RESULTS:

A TABLE SHOWING THE DIFFERENT SCORES FOR THE WATER TESTING.

Place Tap water score(water quality index)

Local water (reservoir/ river)(water quality index)

U.K 3 3

Nigeria 2.5 --

Russia 3 3

WHAT WE FOUND OUT:

When we looked at our results it looked like the tap water got the same score in the different countries.This meant that the water may be OK to drink.

However, none of the schools did a bacteria test. If we had done this then the water scores may have been different.