More cards in this set

Card 6

Front

Name two methods to soften hard water

Back

Preview of the front of card 6

Card 7

Front

Why is chloride added to the water supply?

Back

Preview of the front of card 7

Card 8

Front

Advantages and disadvantages of adding fluorine to water

Back

Preview of the front of card 8

Card 9

Front

What do water filters contain?

Back

Preview of the front of card 9

Card 10

Front

Two tests for water impurities

Back

Preview of the front of card 10