ACS Secondary Science Guidelines Flashcards
What does RAMP stand for in laboratory safety?
Recognize the hazards, Assess the risks, Minimize the risks, Prepare for emergencies
What is the purpose of a safety contract in the laboratory?
To show that students and parents understand and agree to follow lab safety rules
What are the four fields of the NFPA diamond?
Health (blue), Flammability (red), Reactivity (yellow), Special (white)
What does a rating of 4 in the NFPA system indicate?
Extreme danger or hazard
How is hazard severity indicated in the GHS classification system?
Lower numbers indicate greater severity (e.g., Category 1 is most severe)
What is the difference between a hazard and a risk?
Hazard is the potential for harm; risk is the probability that harm will occur
What PPE is required in all chemistry labs?
Chemical splash goggles, lab coats or aprons, and gloves
Why should long hair be tied back in the lab?
To prevent it from catching fire or getting into chemicals or equipment
Name three common routes of chemical exposure.
Inhalation, ingestion, dermal (skin contact)
What should be used to neutralize an acid spill?
Sodium bicarbonate or sodium carbonate
What class of fire involves flammable liquids?
Class B
Which fire extinguisher type is suitable for Class A, B, and C fires?
Dry chemical (multipurpose) extinguisher
What should you do if a chemical gets in your eye?
Flush with water using an eyewash station for at least 15 minutes and seek medical help
Why is the use of mercury thermometers discouraged in schools?
Mercury is a serious chronic health hazard and difficult to clean up if spilled
What is the fire triangle?
Oxygen, heat, and fuel
What is added in the fire tetrahedron that is not in the fire triangle?
A chemical chain reaction
What types of gloves are recommended for chemical handling in the lab?
Non-latex gloves appropriate for the chemical being used
Why are flammable liquids dangerous when poured near open flames?
Because vapors escape first and can ignite instantly
What does SDS stand for and what does it provide?
Safety Data Sheet; provides detailed information on chemical hazards and safe handling
What is the appropriate way to handle broken glassware?
Use gloves and a dustpan; dispose in a designated broken glass container
Why should students not return excess chemicals to original containers?
To prevent contamination of the original supply
How can chemical waste be minimized?
Use microscale experiments, plan carefully, and combine compatible wastes
What is a teratogen?
A substance that can cause birth defects in a developing fetus
