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