SAFETY FIRST!

1. SAFETY FIRST!

2. What are some Do’s and Don’t in a Lab?

3. DO…FOLLOWALLINSTRUCTIONS • Instructions may be verbal or written. • Read instructions carefully. • Perform ONLY authorized experiments.

4. ALWAYS REMEMBER TO… • Act in a responsible manner at all times. • Treat the laboratory as a work place and NOT a playground! • Be safe…because safety is my first concern in the classroom!

5. Goggles - for eye protection Eyewash station - for flushing of the eyes Fire blanket - for smothering clothing fires Safety shower - for clothing fires as well as extensive chemical spills on body. Fire extinguisher - for fires NOT on a person SAFETY EQUIPMENT IN THE CLASSROOM

6. WHEN TO WEAR YOUR SAFETY GOGGLES Always wear safety goggle’s when you use: • chemicals • heating materials • glassware

7. CLEAN UP ALL SPILLS • React to accidents quickly and calmly. • Report accidentsto your teacher. • Clean up minor spillswith paper towels. • Clean up a solid spill or glassware with a broom and dustpanand dispose of it where indicated by your teacher.

8. APPROPRIATE CLOTHING • Loose fitting clothing or jewelry can get damaged by equipment, chemicals, or heating devices.

9. ELECTRICAL HAZARDS • The main concern when using electricity in laboratory situations is electrical shock. • The human body is a good conductor of electricity.

10. MECHANICAL HAZARDS • The main concern is that loose clothing or hair will be caught in the machinery and will cause bodily damage. • Objects that come into contact with a spinning component can cause sparks or can damage the equipment.

11. HAIR INSTRUCTIONS • Tie back long hair when using chemicals, heat, or equipment with gears or spinning parts. • Caution, hair preparations such as hairspray, gels, and mousse are often very flammable.

12. THE RIGHT TO KNOW LAW

13. DELAWARE’S HAZARDOUS CHEMICAL INFORMATION ACT Is better known as THE RIGHT TO KNOW LAW You have the right to know what chemicals you are working with in a working environment.

14. MSDS MSDS stands for = Material Safety Data sheet • Identifies manufacturer • Gives chemical and physical properties • Indicates fire and explosion hazard • Identifies health hazard • Gives reactivity data • Indicates storage and handling procedures • Supplies first aid information • Details disposal and cleanup methods MSDS sheets online

15. Material Safety Data Sheets MSDS forms can be found here at DAPSS: • Main Office • Nurse’s Office • Maintenance/Custodians • Science classrooms

16. HAZARD COMMUNICATION: • A written document, a warning sign or a chemical label warning one of a hazard.

17. TYPES OF CHEMICAL EXPOSURE • What does Exposure mean? • Two types of chemical exposure: • Acute • Chronic

18. ACUTE EXPOSURE • Exposure to large amount of chemicals in a short period of time. ACUTE REACTIONS • A reaction that happens right away or within minutes or hours. (Burns, rashes, nausea)

19. CHRONIC EXPOSURE • Exposure to small amounts of a chemical over long periods of time CHRONIC REACTIONS • A reaction that occurs or builds up over a long period of time (smokers hack)

20. CHRONIC HEALTH EFFECTS • Cancer • Respiratory problems • Birth defects • Mutations

21. Signal Words These words are often followed by such words as: • Caution • Warning • Danger • Combustible • Flammable • Explosive • Oxidizer • Reactive • Corrosive • Poison • Irritant • Carcinogen • Toxic

22. Name of the chemical Chemical formula Hazard warning Manufacturer Hazard statement Handling and storage Notes to physician Signal words (caution, warning, danger) Precautions Antidotes Fire, spill and leak instructions RTK Worksheet Chemical Warning LABELS

23. Chemical Warning Labels Chemical warning labels may have the following information listed: • Identity of the chemical

24. Chemical Warning Labels Chemical warning labels may have the following information listed: • Hazard Statement • Signal word • First Aid • Hazards for skin • Hazards for swallowing • Call poison control

25. Chemical Warning Labels Chemical warning labels may have the following information listed: • Instructions in case of exposure • Antidotes • Notes to physician • Handling and storage instructions • Manufacture

26. How dangerous can Toothpaste be?

27. Chemical Labels

28. COLOR CODING ON CONTAINERS RED - FLAMMABLE YELLOW - REACTIVE BLUE - TOXIC OR POISONOUS WHITE - CORROSIVE (to eat through) or CAUSTIC (to burn) GREEN - NONHAZARDOUS

29. NUMBER SYSTEM 4 - extremely toxic 3 - very toxic 2 - moderately toxic 1 - irritating 0 - not known to be toxic D.O.T. classifications

30. Tolerance Limit Value (TLV) The amount of chemicals that a human being can be exposed to without side effects.

31. Parts per million (ppm) The amount of any substance dispersed into another. If you were to drop a 10 grams of Kool-Aid powder into a million grams of water you would have a solution containing 10 parts of Kool-Aid to 1 million parts of water or simply just 10 ppm of Kool-Aid to water.

32. Vocabulary to Know Exposed to oxygen Oxidation – Toxic - TLV Dermal - Diluted – Reactivity – Deadly Skin To weaken with water. Will react (change) when something is added to it.

33. Vocabulary to Know • Acute • Asphyxiant- • Carcinogen- • Chronic • Combustible- • Concentrated- • Corrosive- • Cutaneous - To suffocate Causes cancer Will catch on fire To strengthen without water. Will eat through Affecting the skin

34. Vocabulary to Know EnvironmentalProtectionAgency • EPA – • DOT – • Ignitable – • Ingestion – • Inhalation – • Irritant- • Lethal Dose – • Mutagen – • *Narcosis - DepartmentOfTransportation Will catch on fire To eat To breath Will irritate the eyes, skin or mouth Dose of something that will kill you. Causes mutations Drowsiness

35. SAFETY in the LABPractice

36. Notebook Safety Activity What’s Wrong Why is it wrong?

37. Group 1:Cartman, Kenny, Kyle, & Stan During the mixtures lab, Cartman gets bored and decides to mix the white powder chemical with the yellow liquid from the small cracked beaker. Mixing these two chemicals together is not part of the directions. All of a sudden Kyle notices smoke rising from the beaker, so he takes off his goggles and before he can say anything the beaker explodes killing Kenny. Stan starts screaming and throws up on himself.

38. Group 2:Bart, Milhouse, Nelson, and Ralph Bart thinks today’s lab is really cool, and wants to show off his new science skills to Lisa. He has his books and book bag scattered all over the lab table, but he manages to set up the lab correctly. He reaches over a hot plate that is on to save a little bit of each chemical so he can do the experiment again later. When the teacher isn’t looking, he sneaks the chemicals into his pocket that has his gum in it. At lunch Milhouse notices a burning smell, just as Bart jumps up from the table screaming about his mouth and legs burning!

39. Group 3:Madonna, Jay-Z, Christina Aguilera, & Beyonce Madonna is leaning over the lab table to ask Beyonce for help…the ends of her hair dip into the beaker with the chemicals. Christina reaches over one of the beakers and the sleeve of her shirt knocks it over and breaks the beaker. Jay-Z grabs some paper towels and starts wiping up the mess. He throws the glass in the trash. After he has it all cleaned up he notices a small cut on his hand, but it’s no big deal so he continues working.