Environmental Education Service
Documents
- Umgeni Water Catchment System Assessment_Article [JPG – 881 KB]
- Stop illegal sewage discharge [PDF – 1.64 MB]
- Water Purification and Waste Water Treatment Processes [PDF – 2.88 MB]
- The dangers of leaks” “water month 2020 [PDF – 311KB]
- Umgeni National Water Month. [PDF – 426KB]
- Water and Environmental Education Brochure [PDF – 500KB]
- Guide to Protection of Water Resources and Biodiversity for Healthy Living
[PDF – 3.48MB] - Wetlands Day Article [PDF – 460KB]
- Water Month Article [PDF – 134KB]
- International day of Biological Diversity [PDF – 2.56MB]
- Arbor Day Article [PDF – 156KB]
- Global Handwashing Day [PDF – 321KB]
- Marine Awareness 2021 [PDF – 490KB]
- Aquatic Invasive Weeds Awareness [PDF – 489KB]
- Toilet Day [PDF – 101KB]
- World Wetlands Day 2022 [PDF – 12MB]
- National Arbor Month 2023: Trees of The Year [PDF – 12MB]
THE 3 FORMS OF WATER
Water is all round us. It is in the air, in and on the ground, in everything we eat or drink, in animals, in man, in plants, just everywhere. Eighty percent of the earth’s surface is water in some form. These three forms are
1. Liquid
a. Saltwater – oceans (97 percent of all the water on earth)
b. Freshwater – lakes, streams, rivers, ponds, wells;
c. Groundwater – (1 percent of all the water on earth
2. Solid
Glaciers, icebergs, ice, snow – (2 percent of water on earth
3. Gas
Vapour in the air, clouds
Water as precipitation, exists in the same three forms:
- Liquid
Rain, Sleet, Drizzle - Solid
Snow, Hail - Gas
Fog
Liquid (water) becomes solid (ice) when the temperature of the water is below freezing (O degrees Celsius). Frozen water becomes strong enough to walk or skate on because the molecules of water are now holding very tightly to one another
Water expands when it freezes. It can break bottles and pipes and cause cracks in rocks and pavements. As ice melts, molecular bonds loosen and it becomes a fluid (water).
When water is heated to boiling point (100 degrees celsius), the molecular bonds break and the water becomes a gas (steam). Steam exerts a powerful force when constricted and can be used to drive machinery