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An AI chatbot can turn "a Class 11 demo on halides" into a neat plan quickly, with an aim, apparatus list, steps and an observation table. But a plan that looks complete can still contain a chemical your school should not stock, too large a quantity, or a mixing step in the wrong order. Use the AI for the first draft. The safety check stays with you.
How well does AI spot lab hazards?
Not well enough to trust on its own. In a study published in Nature Machine Intelligence in January 2026, Yujun Zhou and colleagues tested 19 large language and vision-language models on LabSafety Bench, a set of 765 multiple-choice questions and 404 realistic lab scenarios covering 3,128 open-ended tasks. No model scored above 70% accuracy on identifying hazards. Proprietary models did well on the structured questions but showed no clear advantage in open-ended reasoning, which is closer to what writing a lesson plan asks for.
The authors warn that an "illusion of understanding" may lead researchers to overtrust unsafe outputs; we explain why AI sounds confident even when it is wrong.
What should you check in an AI-drafted lab plan?
The School Chemistry Laboratory Safety Guide from the US Consumer Product Safety Commission and NIOSH tells teachers: "Before each activity in the laboratory, weigh the potential risk factors against the educational value." It also asks teachers to understand "all the potential hazards of the materials, the process, and the equipment." Here is that advice turned into five checks for an AI draft:
Chemicals. List every substance, including solvents and indicators. Check each one against your school's approved list and the label or safety data sheet. The guide's Appendix C names substances whose hazards outweigh their teaching value, including benzene, chloroform and carbon tetrachloride.
Quantities and concentrations. Ask whether a smaller amount would show the same result. The guide advises buying chemicals in the smallest quantity needed and using microscale experiments.
Order of steps and mixing. Look for incompatible pairs. The guide's Appendix E lists some, such as concentrated nitric acid with acetic acid, acetone or alcohol.
Equipment and protection. Check that every step names the goggles, fume cupboard or heat source it needs, and that your lab has them.
Waste. Decide where every product goes before the lesson, not after.
In India, NCERT addresses quantities directly. The preface of its Manual of Microscale Chemistry Laboratory Kit for Grades 11 and 12 lists "many accidents due to fire and hazardous chemicals" among the problems of the present-day chemistry laboratory. NCERT says the kit's apparatus "limits the volume of liquid reagent and the quantity of the solid chemicals used". If your school has this kit, ask the AI to rewrite the plan at that scale, then check it against the manual.
What does a safety check look like in practice?
Here is a made-up AI draft, checked line by line against the NIOSH guide linked above:
Draft says: "Shake the solution with carbon tetrachloride and watch the colour of the lower layer." Check: Appendix C lists carbon tetrachloride as "may be fatal if inhaled or ingested" and a "reasonably anticipated human carcinogen". Action: remove it. Ask the AI for alternatives, then check each one against the same lists.
Draft says: "Record the temperature with a mercury thermometer." Check: the guide's substitution table suggests digital and alcohol thermometers. Action: swap.
Draft says: "Add methyl orange as the indicator." Check: the same table lists bromophenol blue and bromothymol blue as possible substitutes. Action: see what your board's practical requires before you change it.
Draft gives no amounts. Action: send it back. A plan without quantities cannot be checked.
Last, try the activity yourself first, with the same amounts and equipment. Our guide to chemistry lab safety rules for school practicals covers the rules students follow on the day.
Which prompt makes an AI lab plan easier to check?
A better prompt does not make the plan safe, but it puts the hazards where you can see them. Try:
"Draft a Class 11 chemistry demonstration on (your topic) for a school lab. List every chemical with its concentration and the amount needed per group. For each step, state the hazard and the protective equipment. Flag anything a school might not be allowed to stock. Say how to dispose of every product. Mark any line you are unsure about."
Then run the five checks. Parents can use the same steps for projects at home; see our post on planning a home experiment with AI.
If students need to see an idea before they handle it, the Fermi Simulation Lab has interactive simulations for ideas that are easier to see than to read. Afterwards, Fermi's AI tutor can work out what a student already knows and build a plan for the session, so the concepts behind the practical stick.
