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1.2Your ScienceLaboratory

Pn Siti Khadijah Madhadzir

SMJK Chong Hwa

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Who usually work in a

laboratory ??

SCI!"IS"#

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It$ u$#%hen we want

to carry out

$cienti&ic in'e$tigation$

during $cience (e$$on$.

Who usually work in a

laboratory ??

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1) Laboratory Safety Rules

)e&er te*tboo+ ,age -

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a /L0MM0L

Sub$tance$ thatcan catch &ire orburn$ ea$i(y.

*a,(e$ 3

i a(coho(

Ii Petro(

iii +ero$ene

2) Hazard Warning Symbols

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b 4PL5SI6

Sub$tance$ that

can e*,(odewhen heated or(it.

*a,(e$ 3

i $odiu

Ii ,ota$$iu

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C I))I"0!"

Sub$tance$ thatay cau$e

in&(aation tothe $+in.

*a,(e$3

i ch(oro&orIi aonia$o(ution

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d C5))5SI6

Sub$tance$ thatay cau$eburn$ or

daage to the$+in.

*a,(e$3

i Hydroch(oricacid

Ii broine

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e P5IS5!57S 5) "54IC

Sub$tance$ thatay cau$e

death or harto the body by,oi$oning.

*a,(e$ 3

i ercury

Ii ch(orine

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& )08I50C"I6

Sub$tance$ thatgi'e out

radiation thatcan de$troybody ti$$ue$.

*a,(e$ 3

i uraniu

Ii ,(utoniu

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3) Laboratory !!aratus

a "e$t tube$

"o contain $a(( aount o& cheica($

"o carry out reaction

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b ea+er

"o contain biggeraount o& cheica($

"o carry out reaction

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c Conica( /(a$+

"o contain biggeraount o& cheica($

"o carry out reaction

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d )etort Stand

"o c(a, and ho(d a,,aratu$

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e urette

"o ea$ure the aount o& (i9uid

accurate(y

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e Pi,ette

"o ea$ure the &i*ed aount o& (i9uid.

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& "e$t tube rac+

"o ho(d te$t tube when not in u$ed.

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& "e$t tube ho(der

"o ho(d hot te$t tube when heating

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h Mea$uring cy(inder

"o ea$urethe 'o(ue o& (i9uid

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i /i(ter &unne(

"o &i(ter $o(id &ro (i9uid