More cards in this set

Card 16

Front

True or false, the more soap needed to form the lather the softer the water?

Back

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Card 17

Front

What most water be rid of before it is safe to drink?

Back

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Card 18

Front

What is the first stage in water treatment?

Back

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Card 19

Front

What is the 2nd stage of water treatment?

Back

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Card 20

Front

What is the 3rd stage of water treatment?

Back

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Card 21

Front

What is the 4th stage of water treatment?

Back

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Card 22

Front

Why is distillation not used to filter out tap water?

Back

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Card 23

Front

What is the advantage of having fluoride in our tap water?

Back

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Card 24

Front

What is the disadvantage of having fluoride in our tap water?

Back

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