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