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Look at the image slider below which shows the images of Punggol Waterway in 2010 and 2020 captured by Google Earth. Move the slider and observe the changes of the environment.
What are the human activities which you can observe from the two images in the area?
Why do you think the changes are made?
How do you think this will affect the water quality in Punggol Waterway?
Students gather information from online sources as secondary data for their geographical investigation.
The waterway is man-made, about 4.2 km long.
It is located in Punggol, in the northeast of Singapore, connecting Punggol Reservoir to the sea (Johor Strait).
The waterway was developed as part of Singapore’s urban planning to support housing, recreation, and environmental sustainability.
The waterway is integrated into a well-planned town with HDB flats, Punggol Waterway Park, cycling paths, playgrounds, fitness areas as well as shopping and amenities such as Waterway Point Mall.
It is Singapore’s first man-made waterway within a housing estate designed to support the idea of a “Waterfront Town”.
https://www.hdb.gov.sg/about-us/our-towns-and-estates/punggol
Students collected primary data via a water test and making observations of the Punggol waterway through annotations.
Water test to check out the water quality of the water collected from Punggol Waterway. Most groups obtained a result of 4ppm for dissolved oxygen, 7 for PH and 0 JTU for turbidity showing water quality that is good enough to support the aquatic plants and animals in the water.
Groups collating their water test results and analyse the results together as a class.
Students making observations on how physical features and human activities can affect the water quality in Punggol waterway and annotating their explanations on the photographs.
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