Why is it important to wear personal protective equipment (PPE) in the laboratory?

To protect against potential hazards

Why should you avoid eating, drinking, or applying cosmetics in the lab?

To avoid potential ingestion or contact with harmful substances

Because you might spill something.

What should you do if you find a beaker containing an unlabeled liquid?

Treat it as potentially hazardous and notify the lab supervisor

Taste it to determine what it is

Smell it to identify the substance

Ask a lab partner to identify it

If a fire starts in the lab, what should you NOT do?

Try to put out the fire with water, regardless of the source

Use a fire extinguisher if safe and trained to do so

What must you remember when working with heat or burners?

Keep it away from you and your classmates.

Use clamps when you need to hold the container.

What should you do if you accidentally break a test tube and spill a chemical on the table?

Inform the instructor and lab assistant. Use water and paper towels to clean up the spill; place the broken test tube in the disposal container specified by the teacher for sharp objects.

Throw the glass into the nearest trash bin and let the spill air-dry rather than letting anyone know.

Quickly dispose of the glass, wipe up the spill with the nearest cloth, and hope nobody notices.

Caution your lab partners to avoid the area while you dispose of the glass.

What is the correct way to smell a chemical in the laboratory?

Pour a little chemical on your hand and then smell

Ask a colleague to smell it for you

What should you ensure before leaving the lab as the last person?

All equipment is turned off, and the area is clean.

All your personal items are taken with you.

If your lab partner’s sleeve catches fire while using a Bunsen burner, what should you do?

Smother the flame using a fire blanket.

Pour water over your lab partner's sleeve.

Try to beat the fire out with your hand.

Leave the lab immediately and call for help.

How should you dilute a strong acid safely?

It doesn't matter, the order of addition doesn't affect the reaction

Neither one, acids should never be diluted

Lab Safety Practice Live Quiz

Chemistry

Biology

Physics

Grade 6th,
Grade 7th,
Grade 8th

OSHA

NFPA

ANSI

Reviewed by Daniel P

Daniel P, MSEd (Science Education) |

Science Teacher

Review Board Member

Daniel P. is an experienced STEM club teacher with 11 years of urban teaching experience. He holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. He is committed to enhancing student education, using his expertise in curriculum design, differentiated instruction, and Google Classroom.

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Quizzes Created: 5 | Total Attempts: 146,832

| Attempts: 78,760 | Questions: 10 | Updated: Aug 6, 2026