Investigating How Various Activities Around the River Can Affect the Water Quality

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Investigating How Various Activities Around the River Can Affect the Water Quality

The aim of this field experiment is to find out how various activities

around the river can affect the water quality such as the clearness of

the water. In order to carry out this field experiment, we used data

loggers the black and white disc, beaker, filter paper, ping-pong

ball, raffia string and bamboo sticks.

For the experiment to test for the temperature of the river water, we

used the data logger which was provided for us. Firstly, we connect

TMP (T/C – K °C) to the MultiLog’s input channel I/O-1.Then we

switched the data logger on and make sure the MultiLog displays

“Ready”. Then we click PORT until “INPUT-1” is displayed. After which,

we click SENSOR until “Temperature” is displayed and RANGE until

“TC-K°C” is displayed. Click RATE until “Every Sec” is displayed.

Click SAMPLES until “Samples = 2000”is displayed. Click TRIGGER until

“Not Active” is displayed. After that, we place probe in the water and

click the run/stop button ad wait for the reading to stabilize.

Finally, we take the reading in degree Celsius and click the run/stop

button to stop.

As for the experiment to test for the pH level of the water, we

continued to use the data logger. Firstly, we connected the connecting

cable from MultiLog’s input I/O-1 to the pH (0÷14 pH) adaptor. Then

we connected the pH probe to the pH (0÷14 pH) adaptor, and pressed ON.

When the MultiLog displayed ‘Ready’, we clicked PORT until “INPUT-1”

was displayed. Then we clicked SENSOR until ‘pH’ was displayed.

After which, we clicked RANGE until (0÷14 pH) was displayed, and

clicked RATE until “Every Sec” was displayed. After that, we clicked

SAMPLES until “Samples = 2000” was displayed, and clicked TRIGGER

until “Not Active” was displayed. We then removed the “Electrode

Storage Water” bottle from the end of the pH probe and placed the

probe into our river water sample. Then we clicked the run/stop

button and obtained our readings.

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