1. Investigating Matter
Chapter 1.2

2. Matter Anything that has MASS and VOLUME
MASS – the amount of matter in a substance or object
VOLUME – the amount of space a substance or an object occupies
Light fixture is made of “stuff”
Beam of light is energy and NOT made of “stuff”

3. Matter Made up of elements each of which:
contain only one kind of matter
cannot be broken down or separated into simpler substances

4. Properties of matter
Physical Properties are characteristics of matter that are observed (seen, felt, etc.) or measured
Chemical Properties are characteristics that can be observed when substances react with each other

5. Physical Properties
State – solid, liquid or gas

6. Physical Properties
Colour

7. Physical Properties
Malleability – ability to be bent or beaten into sheets vs
Metals - good
Phosphorous – not so good....

8. Physical Properties Ductility – ability to be drawn into wires
Sulphur – not exactly...
Copper – yes!

9. Physical Properties
Texture – appearance or feel of the surface

10. Physical Properties
Magnetism – tendency to be attracted to a magnet

11. Physical Properties
Lustre – degree to which the material reflects light (how “shiny” it is)

12. Physical Properties Solubility – ability to dissolve in water vs vs

13. Physical Properties
Conductivity – ability to conduct electricity or heat

14. Physical Properties
Viscosity – resistance to flow

15. Physical Properties Density – ratio of a material’s mass to its volumevs

16. Physical Properties Melting Point – temperature of melting/freezing
0 degrees Celsius
1535 degrees Celsius

17. Physical Properties Boiling point – temperature of boiling/condensing
100 degrees Celsius
-183 degrees Celsius

18. Chemical properties
Reactivity – degree to which the substance combines chemically with other substances (water, acid, other substances) vs

19. Chemical properties
Combustibility – degree to which the substance burns (reacts with air or pure oxygen)

20. Chemical properties
Toxicity – degree to which the substance reacts in the body to produce harmful substances (poison)
He’s “mad as a hatter”!

21. Physical changes
Involve a change of appearance, but NO NEW SUBSTANCES are formed

22. Chemical changes
Occurs when substance recombine to form new substances