[After school activities] Laboratory experiment: Checking water quality of water ecosystem in Hanoi

Due to the parents-teacher conference, teammates' personal business and my illness, the laboratory experiment had been delayed to 14th April 2017.

We planned to have water quality checking kit. However, some issues have occurred so we couldn't experiment our water sample with the kit.

Fortunately, we have Plan B, which include: checking turbidity, checking pH rate, and microscope checking. So we could conclude our experiment successfully.

<<NOTICE>>

Water sample 1-Giang Vo lake

Water sample 2-Ngoc Khanh lake

Water sample 3-To Lich river Lake

FIRST STEP-CHECKING TURBIDITY

Beaker 1 and 2 seem very clean. Just like purified water. But Beaker 3 was totally black and smelled like a rotten egg.

SECOND STEP-CHECKING pH RATE

Despite our expectations, these water samples were very alkalic. Among them, sample 3 was the highest alkaline sample among the samples.

When we consider that alkalic has a characteristic of absorbing water from organisms' membrane, we estimate no organisms can have inhabitants in 'To Lich river'. (Water sample 3)

THIRD STEP-CHECKING THROUGH MICROSCOPE

***WARNING***

(THIS CONTENT CONTAINS A PICTURE OF MICROORGANISM(WATER SAMPLE NO.2))

From Giang Vo lake (Water sample No.1)

Barely observe microorganisms. Could observe few plants.

From Ngoc Khanh lake (Water sample No.2)

Surprisingly, we found pro-active microorganism from the 'water sample 2'. Since the government cleaned up the lakebed and legally banned locals to swim in the lake, Ngoc Khanh lake becomes super cleaner than the past time.

From To Lich river

No living microorganisms. Only specks of dirt were observed.

Empirical research is finished. If the water quality is available at the moment, we will use the sample again to get detailed information!