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