Ten questions, four answers each, one shot at finding out whether the lab habits you have built up actually match the ones your institution expects of you. Most people take it the week before a safety induction, or the day before they start working on a bench that somebody else has been using.
It covers glove changes, PPE, spills, broken glass, chemical waste, labelling, wafting, and what to do when something gets in your eye. Nothing is timed, nothing is stored, and there is no account to make.
One honest detail: the result does not stop at a score. It prints every question back with a Correct or Incorrect mark and the reasoning underneath, including the ones you got right, so a pass still tells you something. A pass is 8 out of 10. It is not a certification and it does not replace the safety training your department signs off on paper.
Test your knowledge of lab hygiene practices with this 10-question quiz.
How the quiz works
Answer all ten and press Submit Quiz. The first line of the result is your fraction and your percentage together, 8 / 10 (80%), followed by one of three fixed messages: 80% or above says you have solid lab hygiene knowledge, 60% to 79% tells you to review the questions you missed, and anything under 60% says you should go over lab safety procedures before working in a lab.
Underneath that comes the review, Q1 through Q10, each marked Correct or Incorrect with the explanation attached. Scoring is one point per question with no partial credit and no penalty for guessing, which means the percentage only ever lands on a multiple of ten. With ten questions there is no such thing as a 79% here. You are either sitting at 70% or at 80%, and the gap between those two is one question.
Reset redraws the quiz with nothing selected and empties the result box. Each question takes a single answer, so clicking a different option replaces the one you picked rather than adding a second answer alongside it.
Three of the questions, worked through
Where should chemical waste be disposed? Designated chemical waste containers. Not the sink, not the regular trash, not recycling. This is the one people fail most often because in a school lab it is easy to have got away with rinsing something down the drain for a whole semester without anything going visibly wrong, and getting away with it is not the same as it being right.
How should you smell a chemical? Waft it toward your nose with a hand wave. Never hold the container under your nose and inhale, and definitely do not taste it. The same logic runs through the eye question: a chemical in your eye means flushing with water for at least 15 minutes, not rubbing it, not waiting to see if it calms down.
What is the first step when there is a spill? Alert the people in the area. Cleaning up immediately is the wrong instinct, because everyone else needs to know before they walk through it. And broken glass goes up with a broom and dustpan into a sharps container, never into the regular bin and never into your bare hands.
What this does not check
The questions track standard practice, and the kind of thing covered in the lab safety standard OSHA publishes for laboratories and in most university environmental health and safety inductions. They are general on purpose. Glove change frequency, for one, depends on what you are handling, and your lab’s own written procedure beats any generic answer here, including the one the quiz marks as correct.
Nothing about your attempt is recorded. Refresh the page and it is gone, so a score of 10/10 today says nothing about what you would do at 11pm with a hood sash half open. If you scored under 80%, read the explanations, hit Reset, and take it again from scratch. The second run is where the actual learning happens.
Other tools
- nail trimming reminder for the long-nails problem that gloves do not solve
- pillowcase reminder on the same weekly rhythm as a lab coat wash
- roommate hygiene agreement if shared space and shared standards are the actual issue
Frequently asked questions
What score counts as a pass?
8 out of 10, which is 80%. At 60% to 79% the message tells you to review what you missed, and below 60% it tells you to go over lab safety procedures before working in a lab.
Can I take the quiz again?
Yes. Press Reset to clear the answers and the result, then run it again. Take it once without help, read the explanations, then take it a second time, because the second attempt is the one that sticks.
Are the correct answers based on real safety standards?
They follow the standard practice taught in laboratory safety guidance such as the OSHA lab standard and in most university environmental health and safety inductions. Your institution’s written procedure and your supervisor’s rules take precedence over any generic answer in a quiz.
Does my score get saved anywhere?
No. Nothing is stored, no score history is kept, and reloading the page wipes it. The training record that matters is the one your department holds, and this is a self-check sitting in front of it rather than a replacement for it.
I missed three questions. Why is that only 70%?
Because each question is worth exactly ten points and there is no partial credit. Two misses put you at 80% and a pass, three misses put you at 70% and a review, so the difference between passing and not is a single question out of ten.