1. Unit B: Matter and Chemical Change
Section 1: Safety, Organizing Matter, physical and chemical properties
Section 2: Understanding of the nature of matter through observation
Section 3: Compounds
Section 4: Chemical change

2. Unit B: 1.1 Safety in the Science Class

3. Why do you think lab safety is such a big deal?

4. Lab Safety Rules
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5. Bunsen burner too close to edge of bench (and next to acetone! Boom!)
Girl doing experiment on floor
Fooling around at back bench
Standing on box
Glassware broken
Girl with long hair working with flame
No goggles
Sucking on pipette
Bunsen burner too close to edge of bench (and next to acetone! Boom!)
Test tube rack balanced on the edge.
Boy pouring liquid too close to face
Unattended Bunsen burner
Liquid on bench

6. Unsafe activity No goggles. Sucking on pipette.
Test tube rack balanced on the edge.
Liquid on bench.
Glassware broken.
Unlabeled beakers.
Unattended Bunsen burner.
Bunsen burner too close to edge of bench (and next to acetone! Boom!)
Boxes in walkway.
Unsecured glass apparatus.
Boy pouring liquid too close to face.
Girl with long hair working with flame.
Girl reading at bench.
Girl doing experiment on floor.
Standing on box.
Fooling around at back bench.

7. How do you know how dangerous?

8. Warning Caution Danger Safety Hazard Symbols
The shape indicated how hazardous or dangerous the substance is
Danger

9. Scared of having to remember what each symbol means?
Don’t be such a . . .
CoWarD!

10. The symbol inside the shape is a picture showing the TYPE of hazard
Explosive
Flammable
Toxic
Irritant
Biological
Electrical
Corrosive

11. Practice
danger explosive
caution corrosive
warning flammable

13. WHMIS
Workplace Hazardous Materials Information System

16. copper (II) sulfate