Safety Rules Fill in the blank - Laboratory Safety Rules Worksheet ... - Free Printable

Here is the completed Laboratory Safety Rules Worksheet – Part A, with explanations for each answer to help you understand *why* each word fits.

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✔ Completed Fill-in-the-Blanks:

1. Read the books and complete the pre-lab activities before you begin the lab.
→ *You should read your lab manual or textbook (“books”) and do prep work “before” starting the actual lab to be prepared.*

2. Report any accident or injury to your instructor immediately, no matter how minor it may appear.
→ *Even small injuries or accidents must be reported — “minor” emphasizes that nothing should be ignored.*

3. Do not touch any equipment, chemicals, or other materials in the laboratory are until you are instructed to do so.
→ *“Touch” is a basic safety rule — don’t handle anything without permission.*

4. No food, drink, or gum is allowed in the laboratory.
→ *Chewing gum can lead to accidental ingestion of chemicals — common lab rule.*

5. Keep hands away from face.
→ *To prevent contamination — you might have touched chemicals, so keep hands away from eyes, mouth, nose.*

6. Do not touch, taste, or smell any chemicals unless specifically instructed to do so.
→ *“Taste” is explicitly forbidden — tasting chemicals is extremely dangerous.*

7. Never fool around in the laboratory. Horseplay, practical jokes, and pranks are dangerous and prohibited.
→ *“Horseplay” means rough or silly behavior — not safe in a lab setting.*

8. Know the location and correct use of all safety equipment.
→ *You must know where safety gear (fire extinguisher, eyewash, etc.) is located and how to use it.*

9. Work areas should be kept clean and tidy at all times. Clean all work surfaces and equipment before leaving the lab.
→ *Cleaning up “before” leaving ensures safety for next users and prevents accidents.*

10. Return all equipment clean and in working order to the proper storage area. Dispose of chemicals as instructed.
→ *Proper disposal of “chemicals” is critical for environmental and personal safety.*

11. Clear desks and aisle of all excess materials including backpacks, books, & any other items you may have brought to class other than your lab sheet and a pen/pencil.
→ *Clearing the “aisle” keeps walkways safe; “backpacks” and “books” are common clutter items that should be stored away.*

12. Long hair must be tied back and dangling jewelry and loose or baggy clothing must be secured.
→ *“Secured” means fastened or tucked away — prevents catching on equipment or igniting near flames.*

13. Never handle broken glassware with your bare hands. Use a brush and dustpan to clean up.
→ *Broken “glassware” can cut skin — always use tools to clean up shards.*

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📝 Notes:

- Some words like “safety”, “chemicals”, and “before” were used more than once — as allowed.
- Words like “chipped”, “dry”, “heat”, “lab”, “tied”, “unclear”, “glass” were not needed for these 13 blanks (the worksheet says only 17 rules total — likely more blanks follow in Part B or another section).

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✔ Final Answer Key (for quick reference):

1. books, before
2. accident, minor
3. touch
4. gum
5. hands
6. taste
7. Horseplay
8. location, safety
9. Clean, before
10. chemicals
11. aisle, backpacks, books
12. secured
13. glassware

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Let me know if you’d like help with Part B or want to review why certain words *weren’t* used! Stay safe in the lab! 👩‍🔬👨‍🔬