Lab Safety

1. Lab Safety

2. Disposal Alert • This symbol appears when care must be taken to dispose of materials properly.

3. Eye Safety • This symbol appears when a danger to the eyes exists. Safety goggles should be worn when this symbol appears.

4. Clothing Protection Alert • This symbol appears when substances used could stain or burn clothing.

5. Thermal Safety • This symbol appears as a reminder to use caution when handling hot objects.

6. Electrical Safety • This symbol appears when care should be taken when using electrical equipment.

7. Animal Safety • This symbol appears whenever live animals are studied and the safety of the animals and the student must be ensured.

8. Open Flame Alert • This symbol appears when use of an open flame could cause a fire or an explosion. • Fire Safety • This symbol appears when care should be taken around open flames.

9. Chemical Safety • This symbol appears when chemicals used can cause burns or are poisonous if absorbed through the skin.

10. Fume Safety • This symbol appears when chemical reactions could cause dangerous fumes.

11. Poison Safety • This symbol appears when poisonous substances are used.

12. Sharp Object Safety • This symbol appears when a danger of cuts or punctures caused by the use of sharp objects exists.

13. Biological Hazard • This symbol appears then there is danger involving bacteria, fungi, or protists.

14. Radioactive Safety • This symbol appears when radioactive materials are used.

15. Explosion Safety • This symbol appears when care should be taken around open flames.

16. Plant Safety • This symbol appears when poisonous plants or plants with thorns are handled.

17. Lab Safety Rules • Never work in the lab unless a teacher is present and aware of what you are doing. • Prepare for the lab activity or experiment by reading over it first. Ask questions about anything that is unclear. Note any cautions that are stated. • Dress appropriately for a laboratory. Avoid wearing bulky or loose-fitting clothes or dangling jewerly. Pin or tie back long hair, and roll up loose sleeves. Wear close-toed shoes.

18. Lab Safety Rules • Keep the work area free of any books and materials not needed for what you are working on. • Wear safety goggles when working with flames, headted liquids, or glassware. • Never through anything in the laboratory area. • Use the apparatus only as instructed in the manual or by your teacher. If you wish to try an alternate procedure, obtain your teacher’s approval first.

19. Lab Safety Rules • Food, beverages, and chewing gum are not allowed in the laboratory area. • If a thermometer breaks, inform your teacher immediately. If the thermometer is mercury-filled, do not touch with the mercury or the glass with your bare skin. • Do not touch anything that may be hot, including burners, hot plates, rings, beakers, electric immersion heaters, and electric bulbs. If you must pick up something that is hot, use an insulated glove, an over mitt, a pot-holder, or some other appropriate holder.

20. Lab Safety Rules • Report any injuries, accidents, or breakages to your teacher immediately. Also report anything that you suspect may be malfunctioning. • Work quietly so that you can hear any announcements concerning cautions and safety. • Know the locations of fire extinguishers, fire blankets, safety shower, eye wash fountain and the nearest exit.

21. Lab Safety Rules • When you have finished your work, check that the water and gas are turned off and that electric circuits are disconnected. Return all materials and apparatus to the places designated by your teacher. Follow your teacher’s directions for disposal of any waste materials. • There can be absolutely no horseplay in the lab.

22. What’s Wrong With This Picture?

23. There is a coat covering the eye wash station. • He is not wearing safety glasses. • The jar is cracked. • The chemical container does not have a lid on it. • The knife blade is hanging off the edge of the table. • Electrical cord he is going to plug in is wet.

24. What’s Wrong With This Picture?

25. The work area is cluttered. • Her hair is not pulled back • She is not paying attention to what she is doing and is about to knock over a cylinder • He is pointing the test tube at her.

26. What’s Wrong With This Picture?

27. The work area is cluttered. • There is a drink during the lab. • The boy on the right is not wafting the smell toward him. • The boy on the left is not being careful with the power cord.

28. What’s Wrong With These Statements? Hal says that his teacher is solely responsible for preventing laboratory accidents. Keshia started the lab activity before reading it through completely. Ricardo decided to do a lab activity that he read about in a library book before the teacher came into the classroom. Stephanie says that the safety goggles mess up her hair and give her raccoon eyes. She refuses to wear them. Barbie and Ken accidentally break a beaker full of some chemical. Instead of risking getting in trouble they quickly clean up the mess with paper towel and throw it in the garbage.

29. What’s Wrong With These Statements? Hal and all students are responsible for their own safety and the safety of their classmates. Keshiawill not fully understand what is going on in the lab and may mess it up. She needed to read everything before the lab day. Ricardo is not allowed to conduct any labs without a teacher present. Stephanie must wear her safety goggles when told to do so. Barbie and Ken needed to inform the teacher of the broken beaker, so that the teacher can clean up the chemical that spilled properly. Also, the broken glass should go in a designated location, not the trash can.