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