Field Work  
The classes go down to the river during their respective Science periods. When at the river, the class is divided into 5 groups. There are several tasks the students have to carry out :

• The fish and crab traps are baited and then lowered into the river.
• Each group sends out a representative to collect water from the river. They have to cast their buckets as far away as possible from the river bank so that they do not collect the dirty water or leaves by the side of the bank.  They then conduct the water testing.
• They will proceed to the middle of the bridge to measure the depth of the water at that particular time
• The final task would be to collect information about the organisms and the river environment.

Casting the pail into the water

How far will it go?

My very own pail of river water.

So clean and clear

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Safety First

   
our equipment

Casting the fish traps

Casting the fish traps

Posing with the net

Testing the water. Getting ready the PDA

Preparing the equipment

Portable devices like the PDA and Addestation dataloggers makes the testing of water easy.

Measuring the salinity of the water. Measuring the temperature of the water using the MultiLog Pro datalogger

Temperature of the water is normally around 24^oC

Boys doing the testing

Checking the temperature

Getting to go to measure the depth of the river

Casting their lines over the edge

At the middle of the bridge

The weight used

Measuring the length of string

Keeping a record of the findings