lab safety 788978

it is suggested that you wear glasses and not

• contact lenses

• goggles

• glasses

• sunglasses

broken glassware should not be disposed of in classroom trashcan. there is a (a)   . glass disposal container for it .

por down a glass stirring rod to prevent liquids from (a)   ?

do not place hot glassware in ____? rapid cooling may cause glass to ______?

• shatter

• sink

• water

• break

wear protective goggles and a lab _____. whenever heating or ____ hazardous chemicals.

• wear

• using

• clothes

• heating/pouring

never pour water into concetrated acid. acid should be?

lay electrical cords where no one can trip or get _____. in them

• caught

• trapped

• tangled

• lost

let burners and hot plates cool down before (a)   . them, test to see if hey are cool enough by bringing the back of your hand close to them

use tongs and protective gloves to handle _____. objects

• cold objects

• hot objects

• warm objects

• glass objects

these are they only two glasswares that can safely be heated

• kimax

• regular glass

• pyreks

• pyrex