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