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Chemistry
RevisitingBooklet
Name:
10.UsingResources
Contents:
1) UsingtheEarth’sresources
2) PotableWater
3) Wastewatertreatment
4) Alternativemethodsforextractingmetals
5) Lifecycleassessments
6) Waysofreducingtheuseofresources
UsingtheEarth’sresources
Whatresourcesdohumansneedtosurvive?
1)
2)
3)
4)
Sortthefollowingintonaturalandhuman-madeproducts;
Wool,timber,concrete,stone,polythene,rubber,coal,plastic,metals,cotton,brick,
Natural:
Human-made:
Definewhatismeantbyarenewableresource:.................................................................................................................................................................
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Definewhatismeantbyafiniteresource:.................................................................................................................................................................
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PotableWater
Whatismeantbypurewater?
Whatismeantbypotablewater?
Sortthesekeywordswiththeirdefinitionandtheordertheprocessesoccur;
Collection
Sterilisation
Distribution
Filtration
Drawadiagramshowinganexperimentalsetupforcollectingpotablewater
Asourceoffreshwaterischosen.Thisisthewatersource
Thecleananddrinkablewaterbeingsentaroundthecountryandintopeople’shomes
Thewaterispassedthroughameshtoremoveandparticlesinthewater
Anymicro-organismsinthewaterarekilled.
First
Second
Third
Fourth
Drawadiagramshowinganexperimentalsetupforcollectingpotablewater
DescribehowyouwoulddeterminethepHofawatersample
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Describethetestforsodiumions
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Describethetestforchlorideions
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Beforebeingreturnedtoawatersource(eitherariverorthesea)wastewaterfromsewageneedstobetreatedtomakeitsafe.Annotatethefollowingpointsontothediagramwhatismeantbyeachofthefollowingstages.
•• screening and grit removal
•• sedimentation to produce sewage sludge and effluent
•• anaerobic digestion of sewage sludge
•• aerobic biological treatment of effluent.
Alternativemethodsforextractingmetals
Readtheinformationandproducea4–pointmethodforhowbioleachingworks
1)
2)
3)
4)
Whataretheadvantagesofbioleaching?
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Whatarethedisadvantagesofbioleaching?
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Phytomining(HT)
Readtheinformationandproducea4–pointmethodforhowphytominingworks
1)
2)
3)
4)
Whataretheadvantagesofphytomining?
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Whatarethedisadvantagesofphytomining?
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Lifecycleassessments
Forthissheetofpaperanswerthefollowing;
Whatwastherawmaterialthatitcamefrom?..............................................................................
Howwasitturnedintopaper?......................................................................................................
Howdoyouthinkitwastransportedtothisbuilding?...................................................................
Whatpackagingmayhavebeenused?...........................................................................................
Howwillitbeused?........................................................................................................................
Whatwillhappentoitafteritisused?...........................................................................................
Describethreeresourcesthatcanberecycled
1)
2)
3)
Describethreethingswhichcanbere-used
1)
2)
3)
Whatisthedifferencebetweenreusingandrecycling?..................................................................................................................................................................
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Whyisitbeneficialtorecycleresourcesratherthanmakesomethingfromrawmaterials?
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Foraplasticbottleofdrinkingwaterexplainalltherawmaterialsandresourcesusedinitslifetimetoproduceit,distributeit,anddisposeofit.
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