A) to avoid eye strain B) to improve vision C) only if you don't have glasses D) any time chemicals, heat, or sediments are used to protect your eyes
A) skip it and go to the next part B) figure it out as you do the lab C) try several methods until something works D) ask the teacher before you start
A) dumped into the sink B) taken home C) left at your table for the next class D) disposed of according to your teacher's directions
A) see a doctor after school B) apply first aid yourself C) tell the teacher at once D) visit the school nurse after class
A) clean any glassware that looks dirty B) read all directions carefully to know what equipment is needed C) All of these D) examine all glassware to check for chips or cracks
A) closed-toed shoes B) sandals C) open-toed shoes D) slippers
A) not dangerous B) always against the rules C) okay if you are working alone D) Ok
A) the custodian B) your teacher C) your best friend in class D) your lab partners
A) the protection of you and your clothing B) when you are wearing your best clothes C) others to put away D) wiping your hands
A) use a fan B) pour it on the table C) nhale deeply D) waft the odor toward you
A) Ask the teacher about any questions you have B) Clear off your table of books, food, and drinks C) all of these D) read all the directions
A) fire blanket B) classroom door B) fire extinguisher C) all of these D) fire extinguisher
A) treat your hands with skin lotion B) wipe your hands with a paper towel C) ipe your hands on your clothes D) wash your hands with soap and water
A) wipe your hands on your pants B) wipe your hands on a classmate C) Wash your hands and tell the teacher D) try to figure out what the sticky substance is
A) Safety glasses B) Lab coat C) gloves D) sun glasses
A) skipped the lab B) gotten a hair cut before class today C) worn a hat today D) put her hair up in a rubber band
A) Water from the sink B) the fire extinguisher C) The fire blanket D) Your coat
A) After school B) Next week C) while you are working D) before you start
A) burn them in a burner B) throw them in the trash C) wash them down the sink D) follow the instructions of your teacher
A) your hands should be dry B) your hand must be wet C) ask the custodian D) ask the nurse.
A) toward you and others B) toward you and away from others C) away from you and toward others D) away from you and others
A) pour acid into water B) pour water into acid C) let the teacher pour them D) pour them at the same time
A) False B) true
A) true B) false
A) true B) false |