Lab Safety Quiz

If a laboratory fire erupts, immediately

• notify your teacher

• run for the fire extinguisher.

• throw water on the fire.

• open the windows.

Answer explanation

In case of a laboratory fire, the correct action is to immediately notify your teacher for assistance and not try to handle the situation alone.

If you do not understand a direction or part of a lab procedure, you should

• figure it out as you do the lab.

• try several methods until something works.

• ask the instructor before proceeding.

• skip it and go on to the next part.

Answer explanation

If you do not understand a direction or part of a lab procedure, you should ask the instructor before proceeding.

After completing an experiment, all chemical wastes should be

• left at your lab station for the next class.

• disposed of according to your teacher’s directions.

• dumped in the sink.

• taken home

Answer explanation

After completing an experiment, all chemical wastes should be disposed of according to your teacher’s directions.

Tags

NGSS.MS-ESS3-4

Long hair in the laboratory must be

• cut short.

• held away from the experiment with one hand.

• always neatly groomed.

• tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.

Answer explanation

Long hair in the laboratory must be tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.

The following footwear is best in the laboratory.

• sandals

• open-toed shoes

• closed-toed shoes

• shoes appropriate for the weather

Answer explanation

The best footwear in the laboratory is closed-toed shoes as they provide more protection and reduce the risk of injury compared to sandals or open-toed shoes.

It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.

• True

• False

Answer explanation

False because picking up broken glass with bare hands can lead to injuries. It's safer to use gloves or a broom and dustpan.

What should you do if you spill or break something?

• Tell your teacher immediately

• Clean it up the best you can

• Warn your classmates so that they do not step in it

• Try to hide it so that you do not get in trouble

Answer explanation

Tell your teacher immediately to ensure proper handling of the spill or breakage and prevent any accidents or further damage.

What are some safety items we may need during a science experiment? (more than one answer is correct)

• gloves

• long socks

• goggles

• an apron

Answer explanation

During a science experiment, safety items like gloves, goggles, and an apron are necessary to protect against potential hazards and ensure safe working conditions.

Tags

NGSS.MS-PS1-6

What should you do after handling chemicals and living or once-living things?

• Lick your hands

• Wash your hands

• Start playing in the lab

• None of the above

Answer explanation

After handling chemicals and living or once-living things, you should wash your hands to ensure proper hygiene and safety.

We can eat Takis and drink juice in the lab.

• True

• False

Answer explanation

The correct choice is False because eating Takis and drinking juice in the lab is not allowed due to safety and cleanliness reasons.