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