Worksheet: Water Purification

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

Q1:

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

Q2:

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

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

Q3:

When preparing potable water from freshwater sources, the water is first passed through a coarse screen. What is the purpose of this screen?

  • ATo mix the water thoroughly
  • BTo catalyze the breakdown of contaminants
  • CTo help oxygen dissolve in the water
  • DTo removed large objects from the water
  • ETo neutralize acid in the water

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