Science quiz on water

What is water contamination

• Water contamination is the evaporation of water through the stomata (small pores) in the leaves of plants

• Water contamination is when water is polluted by suspended solids, soluble inorganic substances and pathogens

• A form of water that falls to the earth when clouds are cooled and condensed.

• Water that contains no dissolved minerals

What are suspended solids

• The process used to remove the solid particles from the water

• Water made purified on a small scale

• When rain falls it may dissolve gases from the atmosphere such as sulphur dioxide and nitrogen dioxide

• Solids that enter the water by erosion or quarrying, construction of roads

What are soluble inorganic substances

What are pathogens

• disease causing organisms such as bacteria and viruses that enter the water when organic biodegradeble compounds are present in sewage from towns and cities and enter the water

• used in the industry and at the home to remove solid impurities from the water

• the removal of pathogens, solid impurities and dissolved substances

• a universal solvent, for maintaining healthy growth of plants, for drinking, for generating electricity, for cleaning, for putting out fires, for transportation, for water sports, for swimming and for cooking

What is atmospheric contamination?