Chemistry and Physics

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Reasons FOR the fluoridation of the water supply
Fluoride can kill bacteria,Fluoride decreases enamel decay,makes your teeth stronger
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Reasons AGAINST the fluoridation of the water supply
can disrupt some of the enzymes in your body,appears to cause bone cancer in boys,too much fluoride causes fluoridosis
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Properties and uses of chlorine
P:pale,yellow-green gas,toxic U:to kill bacteria-swimming pools
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Properties and uses of iodine
P:shiny,grey solid or purple gas,toxic U:to kill bacteria-as a wound dressing
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Properties and uses of helium,neon and argon
P:colourless gases,very unreactive U:helium-filler gas for party balloons+airships,all 3 used in the manufacture of fluorescent tubes
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Discuss factors that are involved in making decisions about the type of commercial power station that could be built in an area
commissioning and decommissioning costs,environmental impact,fuel costs,transport,sustainability
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Methods of preventiong heat loss from homes
walls-cavity wall insulation,windows-double glazing,rooflaying loft insulation,
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Why is there a need to insulate homes against heat loss?
they reduce the effects of thermal conduction,convection and radiation.
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Other cards in this set

Card 2

Front

Reasons AGAINST the fluoridation of the water supply

Back

can disrupt some of the enzymes in your body,appears to cause bone cancer in boys,too much fluoride causes fluoridosis

Card 3

Front

Properties and uses of chlorine

Back

Preview of the front of card 3

Card 4

Front

Properties and uses of iodine

Back

Preview of the front of card 4

Card 5

Front

Properties and uses of helium,neon and argon

Back

Preview of the front of card 5
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