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