Grade 6

Good Water Quality

Water that is free from pollutants is colourless and odourless. A stream should be ideally surrounded by vegetation (plants). Plants give shade and ...
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/ biodiversity, Colourless, Food Chains, Grade 6, Odourless, Water

How People Influence The environment

See if you can identify all the things humans do that have a negative effect on the environment. Dumping things ...
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/ Grade 6, Herbicides, Pesticides, pollution, Water, Water-related Diseases

How to Clean Drinking Water

We can kill germs in water by boiling it. We can also kill them by adding few drops of bleach and letting ...
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/ Bleach, Boil, Grade 6, Life Straw, Tablets, Water

How to Clean Large Volumes of Water

 Sieving Dirty water that contains substances like mud and stones can be separated from water with a sieve. The holes ...
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/ Grade 6, Purification, Requirements, Standards, Treatment Plant, Water

Plants and Water

Plants can transport water from their roots to their leaves by a process call transpiration. Transpiration is the loss of ...
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/ Carnivores, Consumers, Grade 6, habitat, Herbivores, Producers, Water

The Importance of Water for Ecosystems

The earth is the only planet in our solar system that has liquid water. It is know as the ‘Blue ...
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/ Food, Grade 6, Prevents Floods, Sponge, Water, Water

Water Pollution

Water pollution is caused by human actions that make water dirty and unsafe for living things. In the environment many ...
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/ Grade 6, Water