Question

worksheet 2: safety handling of laboratory apparatus
name: _______________________ date: ________
instructions: answer the following questions and complete the activities to show your understanding of safety handling of laboratory apparatus.
part a: multiple choice

1. what should you always wear when handling laboratory apparatus?

a) sunglasses
b) safety goggles
c) no equipment
d) helmet

1. where should broken glass be disposed of?

a) regular trash can
b) desk drawer
c) designated glass container
d) sink

1. what should you do before using any electrical equipment?

a) wash your hands
b) dry your hands
c) wet your hands
d) wear gloves

1. what must you do with long hair before using a bunsen burner?

a) dye it
b) cut it
c) tie it back
d) leave it loose

1. why should hot glassware never be placed on a cold surface?

a) it may look dirty
b) it may shatter
c) it may melt
d) it may change color

Explanation:

Question 1

In a laboratory, safety goggles protect eyes from chemicals, glass shards, etc. Sunglasses are for sun, no equipment is unsafe, and helmets are for head protection in other contexts. So the correct option is b.

Broken glass is sharp and needs special disposal. Regular trash, desk drawer, or sink are unsafe. Designated glass containers are for this purpose. So the correct option is c.

Electrical equipment and wet hands are dangerous (electric shock). Washing hands is good, but drying them before using electricals is crucial to avoid shock. Wetting or wearing gloves (unless for other reasons) isn't the key here. So the correct option is b.

Answer:

b) Safety goggles

Question 2