Unit16Scientistsatwork课件
日期:2010-02-15 02:17
16sciencephysicschemistrybiologypowerforcegravityelectricitygassolidliquidlivingthingscellgermchangeflamedoanexperimenttryoutnewideasprovesomething/someideasinventnewthingsdiscovernewthingslearnmoreabout…Haveyoueverdoneanexperiment?Wheredidyoudoit?Whatdidyourteacherremindyoubeforeyoudotheexperiment?whenafter1Whatisthemostimportantthingstudentsshouldremember?2Whatisthefirstthingstudentsshoulddowhentheycomeintothelab?3Whyshouldstudentsbecarefulsmellingfrombottles?4Whatistobedonewhenanythinggetsintoyoureyes?5Whatshouldstudentsdobeforeleavingthelab?Safetycomesfirst!Followtheteachers’instructionsBottlesmaycontaindangerousgasesImmediatelywashyoureyeswithalotofwaterCleareverythingawayandleavetheclassroomneatandcleanWashyourhandswithwaterandsoapTurnoffthelightsandshutthewindowsRulesforalab(physicslab/chemistrylab/biologyl,
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