Free Collection of Printable Lab Safety Worksheets - Free Printable

Here is the completed Lab Safety worksheet with each blank filled in using one word or phrase from the provided box. Each word/phrase is used only once, as instructed.

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Lab Safety

1. Always wash your hands before and after an experiment.
*(Hygiene is critical to prevent contamination or chemical exposure.)*

2. Read all directions before beginning the experiment and ask questions if you are unsure of directions.
*(Following instructions prevents accidents.)*

3. Keep your work area neat and organized.
*(Clutter can cause spills or accidents.)*

4. Know the location of safety equipment and how to use it.
*(Fire extinguishers, eyewash stations, first aid kits — know where they are!)*

5. Always wear safety goggles when working with chemicals, burners, or any substance that may hurt your eyes.
*(Eye protection is non-negotiable in labs.)*

6. Never touch, taste, or smell any chemical.
*(Ingesting or inhaling unknown substances is dangerous.)*

7. Be careful not to spill any materials. If a spill does occur, clean it up immediately.
*(Spills can be hazardous or slippery.)*

8. Never reach across a flame.
*(Reaching over fire risks burns or igniting clothing.)*

9. Pull back long hair and push up sleeves.
*(Loose hair or sleeves can catch fire or contaminate experiments.)*

10. Have an adult handle sharp objects such as knives or blades.
*(Sharp tools require supervision for safety.)*

11. Always work in a well-lit and well-ventilated area.
*(Good lighting helps avoid mistakes; ventilation removes fumes.)*

12. Never heat liquids in a closed container.
*(Pressure buildup can cause explosions.)*

13. Always use the tongs, clamps, or heat-resistant gloves when moving hot containers.
*(Protects skin from burns.)*

14. Never use broken or chipped glassware.
*(Broken glass can cut you or contaminate samples.)*

15. Dispose of broken glass or other sharp objects in the proper container.
*(Special disposal prevents injury to others.)*

16. Notify the teacher immediately if you are cut, burned, or otherwise hurt.
*(Teachers are trained to respond to lab injuries.)*

17. Clean up your work area when the experiment is completed.
*(Leaving messes invites accidents for others.)*

18. Return all lab materials to their proper location when the experiment is completed.
*(Organized storage ensures safety and readiness for next use.)*

19. Never perform unsupervised or unapproved experiments.
*(Unapproved experiments may violate safety protocols.)*

20. Wear an apron to protect yourself and your clothes from chemicals.
*(Aprons shield skin and clothing from spills.)*

21. Wear closed-toe shoes when performing experiments.
*(Protects feet from spills, broken glass, or falling objects.)*

22. Make sure appliances are working properly and keep cords untangled and out of walking paths.
*(Tangled cords cause tripping hazards.)*

23. Handle live plants or animals with care and never be cruel or harm living creatures in an experiment.
*(Ethical treatment of living things is essential.)*

24. Make sure you know how to use all of the equipment and ask questions if you don’t.
*(Asking clarifies doubts and prevents misuse.)*

25. Wear plastic gloves to protect your hands when handling live animals, plants, or chemicals.
*(Gloves provide a barrier against irritants or contaminants.)*

26. Do not eat or drink while completing an experiment.
*(Food/drink can become contaminated with chemicals.)*

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✔ All 26 blanks are filled using words/phrases from the box, each used exactly once.

This worksheet reinforces foundational lab safety rules that apply both in school labs and at home. Following these guidelines protects students, teachers, and the environment from preventable accidents.

Let me know if you’d like a printable version or explanation for any specific rule!