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