All except one is not a safety rule.
A. Report all accidents and breakages to your teacher.
B. Run and push other people or behave in a rough way.
C. Always check the label on the bottle before using the contents.
D. You are not permitted in a science laboratory when your instructor is not with you.
It can be caused by breathing in fumes and by tasting or by spilling them into your skin.
A. Cuts
B. Poisoning
C. Damage to the laboratory
D. Damage to clothing and skin
For holding test tubes containing liquids or solid
A. ill
B. IV
C. III
D. VI
For filtering
A. 1
B. II
C. IV
D. IV
For attaching clamp to stand
A. I
B. 11
C. IV
D. VI
Used to contain chemical reactions.
A. 11
B. III
C. IV
D. V
A three-legged platform used to support flasks and beakers.
A. III
B. IV
C. V
D. VI
For cleaning test tubes
A. 11
B. III
C. IV
D. V
Scientists often investigate things by first thinking of a hypothesis, and then testing it by doing
A. prediction
B. conclusion
C. hypothesis
D. experiments
Answer (2)
The incorrect safety rule is option B, which advises unsafe behavior such as running and pushing others. Proper safety rules include reporting accidents, checking labels on chemicals, and requiring instructor supervision in laboratories. Following these rules is crucial for safety in scientific experiments.
;
Adhering to safety rules is vital in chemistry laboratories to prevent accidents. The incorrect safety rule is to behave roughly, which contradicts safety protocols. Proper conduct helps ensure a safe environment when working with potentially dangerous materials. ;
