Achemicalisaprocessinwhichtwosubstancescombinetogetherchemicallytoformanothersubstance.(2)meansallthespecialtools,machines,clothesetcthatyouneedforaparticularactivity.(3)Whenonechemicalsubstancewithanother,orwhentwochemicalsubstances,theycombinechemicallytoformanothersubstance.(4)Youusetorefertosomethingthatisnotcompleteorwhole.(5)Whenametalobject,itbecomescoveredwithrustandoftenlosesitsstrength.reactionEquipmentreactsreactpartialrustsFortheclassofhighlevel(6)Whenahotliquidorwhenyouit,bubblesappearinitanditstartstochangeintosteam.(7)peopleorthingsarenormalandnotspecialordifferentinanyway.(8)Somethingthatliesonorjustbelowthesurfaceofaliquidwhenitisputinitanddoesnotsink.(9)Ifasubstanceinaliquidorifyouit,itbecomesmixedwiththeliquidanddisappears.boilsboilfloatsOrdinarydissolvesdissolveFortheclassofhighlevel课时设计Period1:IntroductionReadingandVocabularyPeriod2:VocabularyandSpeakingVocabularyPeriod3:Grammar1Grammar2PronunciationPeriod4:ListeningandWritingFunctionTaskPeriod5:EverydayEnglishCulturalCornerModuleFilePeriod1Doyouknowthem?famousscientistsMatchthefollowingwords.1.physics2.chemistry3.biologyAlfredNobelDarwinLiZhengdaoThomasEdisonAlbertEinsteinNewtonMadamCurieListenandchoose.1.(a)Waterexistsasasolid,aliquidandagas.(b)Waterexistsasasolidandaliquidonly.2.(a)Whenyouheatametal,itexpands.(b)Whenyouheatametal,itcontracts.3.(a)Steelisamixtureofironandothersubstances.(b)Steelisamixtureofironandoxygen.4.(a)Two-thirdsoftheearth’ssurfaceiswater.