Worksheet: Water Purification

In this worksheet, we will practice describing methods of water purification and explore their advantages, limitations, and common applications.


Potable water must be sterilized before it can be drunk. Which of the following is not a common treatment agent in the production of potable water?

  • A Chlorine
  • B Ultraviolet light
  • C Ozone
  • D Calcium carbonate


Which of the following is not a source of fresh water?

  • A Rivers
  • B Rainwater
  • C Lakes
  • D Oceans
  • EAquifers

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