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