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Exploring Diversity of Matter
Success Criteria - Chap 4.pdfMaking Sure That The Nation's Taps Don't Run Dry
Making Sure That The Nation's Taps Don't Run Dry
- The Straits Times
Think: What are Singapore's 4 National Taps?
NEWater: A Singapore Success Story
NEWater: A Singapore Success Story
- sgPUB
Test Yourself: How does Singapore produce NEWater?
NEWater Treatment Process
NEWater Treatment Process
Stage 1 – Ultrafiltration
Treated used water is passed through membranes to filter out microscopic particles and bacteria.
Stage 2 – Reverse Osmosis
A semi- permeable membrane is used to only allow very small molecules like water molecules to pass through, while keeping out undesirable contaminants.
Stage 3 – Ultraviolet Disinfection
UV rays are capable of killing both bacteria and viruses. This process acts as an additional safety measure.
Filtrate VS Residue
Filtrate VS Residue
- Yeo Yong Kiat
Test Yourself: Identify the filtrate and residue in these everyday examples
Summary: Filtration, Distillation and Evaporation
Summary: Filtration, Distillation and Evaporation
- Simple Science and Technology
Tip:
1. Familiarise with the different set-ups and understand the function of each apparatus
2. It is good to know some useful applications for each technique
Summary: Paper Chromatography
Summary: Paper Chromatography
- Simple Science and Technology
Test Yourself: Can you list 3 uses of chromatography in various industries?
Sketchnote - Topical Summary
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