1. Physical Science by Glencoe

2. Classification of Matter
Chapter 9
Classification of
Matter

3. Physical Property
Any characteristic of a material that you can observe without changing the substances that make up the material.

4. Physical Properties: Color Shape Size Density Melting Point
Boiling Point

5. Chemical Property
Characteristic of a substance that indicates whether it can undergo a certain chemical change.

6. Chemical Properties:
Flammable
Combustible
Reactive
(Acidic)
(Basic)

7. Physical Change
A change in the size, shape, or state of matter of a substance.
(The substances in a material DO NOT change.)

8. Examples of physical changes?

9. Change of one substance in a material into a new substance.
Chemical Change:
Change of one substance in a material into a new substance.
(A new substance is produced.)

10. Law of Conservation of Mass
The mass of all Substances present before a chemical change equals the mass of the substances remaining after a chemical change.

11. During a chemical change, matter is neither created nor destroyed.
L of C of M(cont.)
During a chemical change, matter is neither created nor destroyed.

12. Matter is divided into what two categories?

13. Substance or Mixture

14. A substance is “Pure” made up of one “thing.”

15. Made up of only one type of atom.
Elements:
Made up of only one type of atom.

16. Compounds: Made up of two or more different types of atoms.
Combined in specific ratios.
H20 = 2 H : 1 0

17. Mixtures: Two or more substances with no definite ratio.
Can be separate by physical means.

18. Homogeneous Homo- prefix that means “same”
A mixture where all materials looks the same and individual parts cannot be seen even with a microscope
Another name for this type of mixture is...

19. -Particles to small to see - Uniformly spread out - Never settle
Solution:
-Particles to small to see
- Uniformly spread out
- Never settle

20. Heterogeneous Hetero- prefix that means “different”
A mixture where materials are larger and can either be seen with a microscope or with the naked eye
There are two types of this kind of mixture...

21. - Never settles -Scatters light (Tyndal Effect)
Colloid
- Never settles
-Scatters light (Tyndal Effect)

22. - Visible particles - Particles will settle
Suspension:
- Visible particles
- Particles will settle