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7/25/2019 1.2 Your Science Laboratory.pptx
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1.2Your ScienceLaboratory
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Who usually work in a
laboratory ??
SCIENTIST!
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Its us!When we want
to carry out
scientific investigations
uring science essons.
Who usually work in a
laboratory ??
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1) Laboratory Safety Rules
"efer te#tboo$ %age &
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a' (L)**)+LE
Substances thatcan catch fire orburns easiy.
E#a,%es -
i' acoho
Ii' etro
iii' $erosene
2) Hazard Warning Symbols
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b' E/L0SIE
Substances that
can e#%oewhen heate orit.
E#a,%es -
i' soiu,
Ii' %otassiu,
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C' I""IT)NT
Substances that,ay cause
infa,,ation tothe s$in.
E#a,%es-
i' chorofor,Ii' a,,oniasoution
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' C0""0SIE
Substances that,ay causeburns or
a,age to thes$in.
E#a,%es-
i' yrochoricaci
Ii' bro,ine
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e' 0IS0N03S 0" T0/IC
Substances that,ay cause
eath or har,to the boy by%oisoning.
E#a,%es -
i' ,ercury
Ii' chorine
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f' ")4I0)CTIE
Substances thatgive out
raiation thatcan estroyboy tissues.
E#a,%es -
i' uraniu,
Ii' %utoniu,
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3) Laboratory !!aratus
a' Test tubes
To contain s,a a,ount of che,icas
To carry out reaction
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b' +ea$er
To contain biggera,ount of che,icas
To carry out reaction
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c' Conica (as$
To contain biggera,ount of che,icas
To carry out reaction
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' "etort Stan
To ca,% an ho a%%aratus
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e' +urette
To ,easure the a,ount of i5ui
accuratey
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e' i%ette
To ,easure the fi#e a,ount of i5ui.
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f' Test tube rac$
To ho test tube when not in use.
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f' Test tube hoer
To ho hot test tube when heating
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h' *easuring cyiner
To ,easurethe vou,e of i5ui
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i' (iter funne
To fiter soi fro, i5ui