Chemistry and Physics 0.0 / 5 ? ScienceChemistryPhysicsGCSEWJEC Created by: Sophie ConwayCreated on: 21-12-13 14:31 Reasons FOR the fluoridation of the water supply Fluoride can kill bacteria,Fluoride decreases enamel decay,makes your teeth stronger 1 of 8 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 2 of 8 Properties and uses of chlorine P:pale,yellow-green gas,toxic U:to kill bacteria-swimming pools 3 of 8 Properties and uses of iodine P:shiny,grey solid or purple gas,toxic U:to kill bacteria-as a wound dressing 4 of 8 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 5 of 8 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 6 of 8 Methods of preventiong heat loss from homes walls-cavity wall insulation,windows-double glazing,rooflaying loft insulation, 7 of 8 Why is there a need to insulate homes against heat loss? they reduce the effects of thermal conduction,convection and radiation. 8 of 8
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