Lab Safety, Scientific Method, Measurment Flashcards
(27 cards)
Chemical shower is for…
Chemical spills ONLY
What does the fire blanket prevent and what do you do when on fire?
Fire blanket prevents oxygen getting into the fire
And you always stop, drop, and roll
What 3 things are needed to start a fire
Oxygen
Fuel source
Ignition
Broken Glass Bucket is for
Broken glass only
What type of Fire Extinguisher does Mr. Poirier have?
Type ABC
How many emergency shut offs are in Mr. Poitier’s room
- One at each door.
What is a MSDS?
A material safety data sheet
What is the purpose of an MSDS
to show potential dangers from exposure (me)
Proper containment and disposal (environment)
For emergency workers (Firemen)
What kind of information does the MSDS contain?
Molecular formula, molecular weight, fire and explosion data, physical data, toxicity, Health, and storage
What information is contained in the fire and explosion section
Flash point and burning hazards
What information is contained in the physical data section?
Melting point Boiling point pH Solubility Description
What information is contained in the toxicity section
Irritation data
Effects
Carcinogenic effects
What are 2 kinds of effects
Acute (right now)
Chronic (long lasting)
What information is contained in the health section?
Inhalation Skin contact Eye exposure Ingestion First aid
What information is contained in the storage section?
Disposal
Reactivity
Spill containment
Protective equipment
What do the 5 colors mean on a chemical bottle?
Red: Flammability Blue: Health Hazard Yellow: Reactivity White: Special Safety Green: Safe to use
What scale is used for these colors?
5 point scale
0: lowest
4: highest
What is a scientific method?
A logical process to solve a problem or answer a question
Parts of the Scientific method
Problem Research Hypothesis Experiment Data analysis Conclusion
What is a hypothesis?
A testable prediction
A hypothesis is made up of two parts. What are they?
If (independent variable) then, (dependent variable.)
What is an independent variable
Variable controlled by experimenter
What is a dependent variable?
Variable to be measured
An experiment is consisted of 2 parts, what are they?
Equipment / materials
Procedure