Lab Safety

4. Dress properly for lab activities. Long hair must be _____ back.
10. Never work ______. No student may work in the laboratory without an instructor present.
11. Never leave a lit burner ________. Never leave anything that is being heated or is visibly reacting _______.
13. Examine glassware before each use. Never used _________ or cracked glassware.
14. Observe good housekeeping practices. Work areas should be kept clean and tidy at all times. Bring only your laboratory instructions, worksheets, and/or reports to the work area. Other ______ should be stored in the classroom area.
15. Labels and equipment instructions must be real ____ before use.
16. Know what to do if there is a fire drill during laboratory period; containers must be closed, gas ____ turned off, fume hoods turn off and any electrical equipment turned off.
17. Never food around in the laboratory. _____, practical jokes, and pranks are dangerous.

1. Do not eat food, drink __________, or chew gum in the laboratory.
2. Do not immerse hot glassware in cold water, it may _______.
3. Check the _____of all waste containers twice before adding your chemical waste to the container.
5. Check the label on _______ bottles twice before removing any of the contents.
6. Never look into a __________ that is being heater.
7. Dress properly for lab activities. Shoes must completely cover the foot. No _______ allowed.
8. Never return ____ chemicals to their original containers.
9. Do not place hot apparatus directly on the laboratory desk. Always use an _________ pad.
12. Dress properly for lab activities. Long hair, dangling jewelry, and loose of baggy clothing are ______.