Sec 1 GI at Punggol Waterway

Brought my 2 classes of Sec 1 students to Punggol waterway to investigate "How clean is our waterway?" on 4th and 11th March 2019.
The students observed the human activities around the Punggol waterway as well how human activities are affected by the waterway. The students also did a field sketch of the waterway.

The dam built across the waterway to trap the water.

 Some construction on the opposite bank. How would this affect the waterway?

The weather was not to our favour on 11 March. Temperature was low at 24.1 degree Celsius and it was very windy and rained.

floating turbidity barrier help to stop silt from entering the water body and also keep the aquatic vegetation in place. It also help to trap rubbish and prevent it being washed into the water. 

floating turbidity barrier at the reservoir

oxygen pump which helps to ensure higher dissolved oxygen level to support aquatic life

Field sketch and observations

Field sketch

students sketching and also noting down their observation

The beautify and clean waterway - a place where people relax. A bridge as seen in the background helped to connect the two river banks.

The dam help to trap the body of water to form the reservoir.

The sign board which remind the people not to litter and pollute the reservoir.

The workboat which helps to clean the waterway parked at the side of the dam.

This was done earlier in class- water testing. PH value of 7 Dissolved oxygen level of 4ppm