Lab Safety Quiz

What should students do if they have long hair in the lab?

• A. Keep it untied and loose

• B. Tie it back or confine it

• C. Wear a hat

• D. Cut it short

Answer explanation

Students should tie back or confine their long hair in the lab to ensure safety and prevent it from getting in the way of experiments or equipment.

When should safety goggles be worn in the lab?

• A. Only during practical work

• B. Only when the teacher instructs

• C. When doing experiments that could cause a splash or release a harmful vapour

• D. Never

Answer explanation

Safety goggles should be worn when doing experiments that could cause a splash or release a harmful vapour, which is option C.

What should students do if they break a thermometer in the lab?

• A. Clean it up themselves

• B. Inform the teacher immediately

• C. Leave it as it is

• D. Dispose of it in the trash can

Answer explanation

Students should inform the teacher immediately to ensure proper handling of the broken thermometer and any potential exposure to hazardous materials.

What should students do if they need to smell a chemical in the lab?

• A. Inhale deeply from the bottle

• B. Fan/waft the top of the bottle to direct a little vapour towards the nose

• C. Ask a classmate to smell it for them

• D. Avoid smelling it altogether

Answer explanation

Students should fan the top of the bottle to direct a little vapour towards the nose to smell a chemical in the lab.

What should students do if they find a spill or breakage in the lab?

• A. Ignore it and continue with their work

• B. Report it immediately so it can be cleaned up

• C. Clean it up themselves

• D. Blame it on someone else

Answer explanation

Students should report the spill or breakage immediately so it can be cleaned up to ensure safety in the lab.

What should students do before using equipment, apparatus, or chemicals in the lab?

• D. Share it with a classmate

• B. Have instructions from the teacher

• A. Read the instructions on their own

• C. Experiment with it to learn on their own

Answer explanation

Students should have instructions from the teacher before using equipment, apparatus, or chemicals in the lab to ensure safety and proper usage.

What should students do if they need to dilute acid in the lab?

• A. Add water to acid

• D. Avoid diluting acid altogether

• B. Add acid to water

• C. Mix them simultaneously

Answer explanation

Students should add acid to water when diluting acid in the lab to ensure safety and proper mixing.

What should students do if they need to dispose of glassware in the lab?

• A. Dispose of it in the trash can

• B. Leave it on the lab bench

• C. Dispose of it in broken glassware boxes only

• D. Give it to a classmate

Answer explanation

Students should dispose of glassware in broken glassware boxes only to ensure safe disposal and prevent injuries.

What should students do if they need to pipette in the lab?

• A. Use their mouth

• B. Use a bulb

• C. Use a straw

• D. Use a syringe

Answer explanation

Students should use a bulb to pipette in the lab, as it is the correct and safe method for handling liquids.

What should students do if they need to leave an on-going experiment in the lab?

• D. Continue the experiment from where they left off later

• C. Ask a classmate to watch it

• B. Inform the teacher and then leave

• A. Leave it unattended

Answer explanation

Students should never leave an on-going experiment unattended for safety reasons, so the correct choice is to inform the teacher and then leave.