Question

horseplay or practical jokes in the laboratory are *

always against the rules

okay

not dangerous

okay if you are working alone

other

all unauthorized experiments are prohibited. *

true

false

read all procedures thoroughly before entering the laboratory *

true

false

Explanation:

• First question: In a laboratory, horseplay or practical jokes can lead to accidents as they distract from safety protocols. So, they are always against the rules.
• Second question: Unauthorized experiments can be dangerous (e.g., incorrect chemical reactions, improper handling of equipment). Hence, all unauthorized experiments are prohibited (True).
• Third question: Reading procedures thoroughly before entering the lab helps in understanding safety measures, equipment usage, and experiment flow. So, it is a good practice (True).

Answer:

1. always against the rules
2. True
3. True