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