Lab 1 - Safety and The Scientific Method Flashcards
Four types of waste disposal
Non-infectious/non-biohazard, non-sharps; non-infectious/non-biohazard, sharps; infectious/biohazard, non-sharps; infectious/biohazard, sharps
What is an SDS?
Safety Data Sheet
What does GHS stand for?
Global Harmonized System
Flame over circle: Oxidizing gases, oxidizing liquids, oxidizing solids
Flame: flammables, pyrophorics, self-heating, emits flammable gas, self-reactives, organic peroxides
Exploding bomb: Explosives, self-reactives, organic peroxides
Corrosion: Skin corrosion/burns, eye damage, corrosive to metals
Gas Cylinder: Gases under pressure
Environment: aquatic toxicity
Skull & Crossbones: Acute toxicity (fatal or toxic)
Exclamation Mark: Irritant (eye & skin), skin sensitizer, acute toxicity, narcotic effects, respiratory tract irritant, hazardous to ozone layer (non-manadatory)
Health Hazard: Carcinogen, mutagenicity, preroductive toxicity, respiratory sesitizer, target organ toxicity, aspiration toxicity
Under the new GHS scale, which is more hazardous - a 1 or a 5?
1
Measures length
Meter
Measures volume
Liter
Measures mass
Gram
Metric prefix for 1,000
kilo
Metric prefix for 100
Hecto
Metric prefix for 10
Deka
Metric prefix for 1/10
Deci
Metric prefix for 1/100
Centi
Metric prefix for 1/1,000
Mili
Name the steps of the scientific method.
Develop hypothesis, experiment, gather and analyze data, refine hypothesis or propose alternative hypothesis.
Independent variable
Variable that changes unrelated to other factors; a variable that is manipulated or changed on purpose; graphed on x-axis
