Oneday,Isawthebookonsuchafunnything:Ifundercertainconditions,plasticbottleswillbetheir"water",blowingbubbles.Ithinkthisisveryinterestingexperiment,theyintendtodotheirowntime,tofigureoutwhythebottlewill"drink"bubbleblowing.
Inaccordancewiththebookonthetipsofmybetterpreparethefollowingmaterials:afewoftheflexiblestraw,aplatter,aglassoftapwater,acupofhotwater,acupoficewater,adhesivetape,rubbercement,ink,alargeplasticbottle.Aftereverythingisready,Istarttodotheexperiment.
Thefirststep,Iusedrubbercementtosealthebottle,andtheninsertedintoastraw.
Thesecondstep,Iputadhesivetapewithanotherstrawstrawwiththefirstlinkingtheroot,sothatitcantapintothecup.
Thethirdstepistolookfortheexperimentalsituationwillbe,Iputtheinkbackintothewaterdyedblue.
Thefourthstep,Iputthebottleintoalargeplateandthenbendingstraw,insertcupwater.
Onlyfourmorethanthepre-preparationstep,thenextstepintheexperimentalsituationtoappear.First,Icarefullypouredwithhotwaterbottleintheplasticwall,didnotstartonemovement,soIcontinueto上浇waterbottlewhilewatchingtheglassmovement,andprettysoon,actuallybeginsfromthestrawinthebubble!Nextonthebottle,"drink"the.Ihavebeenpartoftherefrigeratoriceoutoftheicewater,poured瓶壁togo,seemstostartonefailed.Icontinuetobepatienttorepeattheactionjustasheeyesastraw.Hardworkpaysoff,ah,dropsfromastrawinatrueblueink,thebottle,"drink"again!Myexperimentasuccess!
Includedinthisexperimentisascientificreason热胀冷缩hasthecharacteristicsofobjects.Whenthehotirrigatedtotheoutsidewallofplasticbottles,thebottlethermalexpansionoftheair,wenttotheglass,whichincreasesstress,putacupofwaterpressuretogetoutbubblesonastraw;andwhentheicewateroutsidethewallofwaterintothebottle,thebottletheairwascooling,thepressureinsidethesmall,waterwillrunintothebottle.
Ialsoknowalotaboutlife热胀冷缩thesituation,reallyfunny,lovethestudentsusetheirbrains,letusexploretogether!
抄吧!
