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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