Science Water

?
What does filtration?
Used to separate insoluble solids
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What does chlorination mean?
Kills bacteria
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What does evaporation mean?
heat water into steam
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what does condensation mean?
Cool down into liquid
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What does fluorine mean?
Stops tooth decay
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What is hard water
Magnesuim and calcuim
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What is soft water?
does not have magnesuim and calcuim
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What does lather mean?
Bubbles in water
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what does soluble mean?
can dissolve
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what does solute mean?
A chemical that dissolves eg sugar
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what does solvent mean?
cannot dissolve
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what does saturated mean?
cannot dissolve anymore
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exam question: Ethanol boils at 78 degrees. water boils at 100 degrees. outline how you would seperate a mixture of these liquids?
firstly, you would heat the mixture to 78 degrees so the ethnol leaves but the water stays this is called evapuration

next you would cool it down into a liquid this is called condensation
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exam question:Before ground water reaches our taps for drinking it goes through several cleaning processes. Outline each step of the cleaning process before it reaches the taps?
1. Remove large objects this is called filtaration [coarse sand filter]

2. leave the water for days/weeks [sedementation tank]

3. through the fine sand filter to remove small objects

4. chlorine is added to kill bacteria
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Other cards in this set

Card 2

Front

What does chlorination mean?

Back

Kills bacteria

Card 3

Front

What does evaporation mean?

Back

Preview of the front of card 3

Card 4

Front

what does condensation mean?

Back

Preview of the front of card 4

Card 5

Front

What does fluorine mean?

Back

Preview of the front of card 5
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