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