1. Classifying Matter:

2. element atom Periodic Table WHMIS HHPS SDS
OUTCOME QUESTION(S):
S1-2-03
What are the symbols of the first 20 elements and other common ones?
S1-0-04
What symbols and systems help people use chemicals safely at home, work, and for the environment?
Vocabulary & Concepts 
element atom Periodic Table
WHMIS HHPS SDS

4. all known elements in the universe!
Early Scientists
Lavoisier (1750)
Defined element:
Pure substance that cannot be broken down into any other simpler part.
The smallest piece of gold is still made of gold…
Experimented to prove “4 elements” - earth, air, water, fire were mixtures of elements
Periodic Table of Elements contains
all known elements in the universe!

5. Proposed the first “Atomic” Theory about how our world is built
Dalton (1800)
All matter is made of tiny particles – ATOMS
Atoms of each element are unique
Compounds are combinations of elements
Atoms cannot be created or destroyed
Proposed the first “Atomic” Theory about how our world is built

6. You need to memorize the symbols of these elements.
An updated Periodic Table contains 118 elements, the atoms of which come together to make up EVERYTHING in the Universe.

7. 1. Labels on the containers 2. Safety data sheet (SDS)
WHMIS is a government program that requires all dangerous substances to have:
1. Labels on the containers
2. Safety data sheet (SDS)
Some dangerous substances can be pure elements or combinations of elements that make up “chemicals.”

8. Labels are the first alert to the user about the major hazards associated with that product:1
Product identifier
Supplier identifier 
Pictogram(s) – hazard symbols
Signal word
Hazard statement(s)
Precautionary statement(s)
Supplemental label information 3 4 5 6 2

9. the hazards of the product how to use the product safely
Safety Data Sheets (SDSs) are detailed, summary documents written by the manufacturer or supplier of the product:
By law, SDSs must be kept by the employer/user in an accessible location for anyone to reference
the hazards of the product
how to use the product safely
how to recognize symptoms of exposure
what to do if emergencies occur

10. WHMIS (GHS) Pictograms / Symbols
You need to memorize these symbols too...
WHMIS (GHS) Pictograms / Symbols

11. HHPS - Hazardous Household Product Symbols
Fewer symbols, and easier to recognize (than WHMIS), these are found on a product used at home.
HHPS pictograms are intentionally easier so individuals (kids) with NO science background will understand the hazards

12. Lab Safety Rules Ever. HELP!! RULE 6: Never work alone in a Lab.
It is safer to work in pairs,
so one can always get help if it is need.
Lab Safety
Rules

13. Most of these should be “common sense”…
GENERAL GUIDELINES
Read all instructions carefully before you start an experiment.
Do not use or handle anything until instructed by the teacher.
Only do experiments authorized by your teacher.
Keep your work area clean and tidy.
NO food in the laboratory.
DO NOT taste, touch or smell any chemicals.
Be alert and proceed with caution at all times in the laboratory.
Never work alone in the laboratory.
Most of these should be “common sense”…

14. Dress properly during a laboratory activity.
Wear necessary safety equipment.
DO NOT touch your face during the lab.
Wash your hands with soap afterwards.
Take only as much chemical as you need.
Take care in measuring chemicals and clean up spills immediately.
DO NOT pour ANY chemicals in the sink without instruction.
NEVER use chipped, cracked, or dirty glassware.
Know the location of all emergency equipment.
Report any accident or injury to the teacher immediately.

15. Laboratory Hazards – WHAT DO YOU DO?
Thermal Burns
- water, ice
Chemical Burns
- running water, eye-wash, shower
Laceration (cuts)
- apply pressure, Band-Aids
Fire
- fire blanket, extinguisher, pull the alarm
The first aid kit is minimal - anything more than minor will be directed to the hospital immediately

16. CAN YOU ANSWER THESE QUESTIONS? S1-2-03
What are the symbols of the first 20 elements and other common ones?
S1-0-04
What symbols and systems help people use chemicals safely at home, work, and for the environment?
Vocabulary & Concepts 
element atom Periodic Table
WHMIS HHPS SDS