1. Matter and Chemical Change
Unit B
Matter and Chemical Change

2. 1.1 Safety in the Science Class
You must know all of these rules, techniques and procedures in order to participate in any of the Lab Activities.
(See page 95 in textbook)

3. WHMIS Symbols pg. 95 Compressed Gas Dangerously Reactive Poisonous
Oxidizing
Flammable
Corrosive
Toxic
Biohazardous

4. Safety Hazard Symbols pg. 94
Caution
Warning
Danger

5. 1.2 Organizing Matter pg. 97
Draw the diagram illustrated on page 97

6. Terms Melting- a change from solid to liquid.
Evaporation- a change from liquid to gas.
Condensation- a change from gas to liquid.
Freezing- a change from liquid to solid.
Sublimation- a change from solid to gas.
Deposition- a change from gas to solid.

7. Properties of Matter
Properties- characteristics that can be used to describe a substance. These can be either Physical or Chemical.
Physical Properties:
1. Color Lustre
3. Melting Point 4. Boiling Point
5. Hardness 6. Malleability
7. Ductility 8. Crystal Shape
9. Solubility 10.Density
11. Conductivity
Physical Change- the substances appearance or state may be altered, but its composition remains the same. Examples??

8. Properties of Matter
Chemical change- always results in the formation of a different substance, which has its own unique ‘different’ physical properties. Examples??
Describes how substances interact with other substances.
Chemical Properties:
Reaction with acids
Ability to burn
Reaction with water
Behavior in air
Reaction to heat

9. Pure Substance or Mixture?

10. Classifying Matter (fill in chart)
Pure Substances
Mixtures
Elements
Compounds
Heterogeneous
Homogeneous
Mechanical
Solutions
Suspensions
Colloids

11. 1.3 Observing Changes in Matter
Matter can change from one form to another, or create new materials.
A physical change occurs when a material changes state.
A chemical change occurs when two or more substances react and create a new substance.
Evidence that a chemical change has occurred includes:
1. Change in colour
2. Change in odour
3. Formation of a gas
4. Release or absorption of energy (heat)