Lab Safety 1
What does HHPS stand for?
Hazardous Household Products Symbols
What does PPE stand for?
Personal protective equipment
True or False - Hair has to be tied up in while in the lab
True
What is a hypothesis?
A possible explanation or prediction to the question or problem.
What is Science?
the study of our natural world
How do you smell a chemical?
Do not smell any chemicals directly (waft).
How do chemicals enter the body through ingestion?
Chemicals enter the body through the stomach
How do chemicals enter the body through Absorption?
Chemicals can be absorbed by the skin and enter the body
What is a Qualitative Observation
a non-numerical observation that describes the qualities of objects or events (state of matter, texture, odour)
What is a Quantitative Observation
Quantitative Observation: a numerical observation based on measurements or counting (mass, temperature, length)
How do chemicals enter the body through Inhalation
Fumes or particles are breathed in
What does WHMIS stand for?
Workplace Hazardous Materials Information System
True or False - If you break glass YOU must clean it up right away
False - Ms. Rame will clean it up
What is an Inference?
explain or interpret your observations based on what you already know.
What are the six steps of the Scientific Method
Question, Hypothesis, Experiment/Method, Observation, Analyze/Interpret, Communicate
True or False - You can eat at the desks during a Lab
False - You cannot eat or drink during labs
The purpose of WHMIS is to provide information about _______________
hazardous materials
WHMIS
What is an Independent Variable?
This is the factor in the experiment that the scientist controls the changes.
What is a Dependent Variable?
This is the factor that would change in response to the change in the independent variable (what you measure).
What are the four HHPS symbols stand for
Corrosive, Explosive, Flammable, Posionis
What are the three parts of WHMIS
Warning label
Safety Data Sheets (SDS)
Worker (Student!) training
Draw the WHMIS symbol for 'less serious health effects'
Exclamation Mark
True or False: Open Ended questions can be answered with one word
False - Open-ended questions require more explanation.
Ex. What are the costs involved in producing wind energy?
Why is an controlled group important to have in a scientific experiment?
It gives a baseline to compare the results to