Unit B Section 1.1 Flashcards
1
Q
What does a yellow triangle indicate?
A
caution
2
Q
What does an orange diamond indicate?
A
warning
3
Q
What does a red octagon indicate?
A
danger
4
Q
What are the two areas of special consideration for people working in the lab:
A
- understanding warning labels
- following safety procedures
5
Q
Each hazard symbol shows two separate pieces of information:
A
- The shape of the symbol indicates how hazardous a substance is
- the type of hazard, which is indicated by the picture inside the shape
6
Q
Common hazard warnings:
A
- flammable
- toxic
- explosive
- irritant
- corrosive
- biological
- electrical
7
Q
What does WHMIS stand for?
A
Workplace Hazardous Materials Information System
8
Q
purpose of WHMIS
A
protect people who use materials
that might be harmful at work
9
Q
WHMIS symbols:
A
- compressed gas
- dangerously reactive material
- oxidizing material
- poisonous and infectious causing immediate and serious toxic effects
- flammable and combustible material
- biohazardous infectious material
- corrosive material
- poisonous and infectious causing other toxic effects
10
Q
What is MSDS?
A
Materials and Safety DataSheets (MSDS) are
information sheets about specific chemicals.
11
Q
Lab Safety Rules:
A
- Listen to all instructions and follow them carefully.
- Wash your hands thoroughly after each activity and after handling chemicals.
- Wear safety goggles, gloves, or an apron as required.
- Smell a substance by fanning the smell toward you with your hand. Do not put your nose close to the substance.
- Do not taste anything in the lab
- Tie back loose hair and roll up loose sleeves.
- Never pour liquids into containers held in your hand. Place a test tube in a rack before pouring substances into it.
- Clean up any spilled substances immediately as instructed by your teacher.
- . Never look into test tubes or containers from the top. Always look through the sides.
- Never use cracked or broken glassware
- Label any container you put chemicals in.
12
Q
What is the matter?
A
something that has mass and occupies space.