1. Mixtures Matter Elements Compounds Pure Substances Homogenous Mixture
Heterogenous Mixture

2. Matter is classified as follows…
Pure Substance
Mixture
Heterogenous
Element
Homogenous
“Solution”
Compound

3. Matter Matter is made up of atoms.
Matter is anything that has mass and takes up space.

4. Types of Matter…

5. ____Mixtures____ Two or more substances that are physically combined.
There are two major categories of mixtures:
- Homogenous
- Heterogenous

6. A mixture that has a uniform structure or composition throughout.
Homogenous Mixtures:
A mixture that has a uniform structure or composition throughout.

7. Examples of Homogenous Mixtures:
Milk
Coffee
Air
Sugar dissolved in water
Stainless steel

8. Heterogenous Mixtures:
A mixture that does not appear to be the same throughout.

9. Examples of Heterogenous Mixtures:
Chocolate chip cookie
Pizza
Granite
Blood

10. ____Pure Substances____
A sample of matter, either a single element or a single compound, that has definite chemical and physical properties.
There are two major categories of pure substances:
- Elements
- Compounds

11. Element:
A substance that cannot be separated or broken down by chemical means.
It is made up of all the same type atom.

12. Oxygen gas (O2) Hydrogen gas (H2) Gold (Au)
Examples of Elements:
Oxygen gas (O2)
Hydrogen gas (H2)
Gold (Au)

13. Made from two or more different elements joined by chemical bonds.
Compound:
Made from two or more different elements joined by chemical bonds.
Sugar

14. Examples of Compounds:
Water (H2O)
Salt (NaCl)
Glucose (C6H12O6)

15. Matter has both physical and chemical properties.
Properties of Matter…
Matter has both physical and chemical properties.

16. Physical Properties: Shape Luster Texture Magnetism
Observable traits
Color
Odor
Mass
Volume
Density
Boiling Point
Melting Point
Malleability
Ductility
Shape
Luster
Texture
Magnetism
Electrical Conductivity

17. Reactivity Combustibility Flammability
Chemical Properties:
Reactivity
Combustibility
Flammability

18. Matter and Change…
Matter can undergo a physical or chemical change.

19. Definition of a Physical Change:
A change of matter from one form to another without a change in it’s chemical composition.

20. Examples of Physical Changes:
Phase change
- Melting
- Freezing
- Condensing
- Vaporizing
Breaking
Separating
Crushing
Dissolving
Rolling
Stretching
Folding

21. Definition of a Chemical Change:
A chemical change happens during a chemical reaction.
Bonds are broken and new bonds are formed.
The composition of a substance is changed.

22. Indicators that a chemical change has occurred:
New product is formed
Color change
Odor change
Change in temperature: heat absorbed or lost
Precipitate
Light or sound given off
Bubbling
Smoking

23. Examples of Chemical Changes:
Burning
Digesting
Fermenting
Photosynthesizing
Exploding
Ripening/ Spoiling/ Souring
Molding
Baking/Cooking
Oxidizing/ Rusting/Tarnishing
Decomposing