The document discusses physical and chemical changes, mixtures, and different ways to separate mixtures. It defines a mixture as two or more substances physically combined without a chemical reaction occurring. Mixtures can be either heterogeneous, with components not evenly distributed, or homogeneous, with even distribution making the mixture appear uniform. The document outlines various physical separation methods like straining, magnets, dissolving, evaporation, and exploiting differences in component densities.

1. PPhhyyssiiccaall oorr CChheemmiiccaall CChhaannggee??
Rusting iron nails
C.
Dissolving sugar into iced tea
P.
Cutting paper into smaller pieces
Plastic becoming brittle when left
out in the sun
P.
C.

2. Review
4 States of Matter
Physical Changes
Change of State
Chemical Changes

3. MMiixxttuurreess
Two or more substances
physically combined NOT
chemically combined
The parts of a mixture can be
elements, compounds or
elements and compounds

4. MMiixxttuurreess
No chemical reaction takes
place
No new substance is formed
All substances in a mixture
retain their individual properties

5. MMiixxttuurreess
They can be arranged in any
way
The ratio of a mixtures parts
are not exact

6. MMiixxttuurreess
Two classifications of mixtures:
1. Heterogeneous
A mixture that is not the same
throughout
Salad, trail mix, Lucky Charms

7. MMiixxttuurreess
2. Homogeneous
A mixture that is the same
throughout
Its mixed so well it looks like
one substance
Milk, air, sugar cookies

8. SSeeppaarraattiinngg MMiixxttuurreess
Separate the parts of the
mixture
Not the linked up atoms
Separated physically or
mechanically

9. DDiiffffeerreenntt WWaayyss ttoo SSeeppaarraattee
MMiixxttuurreess
Straining

10. DDiiffffeerreenntt WWaayyss ttoo SSeeppaarraattee
MMiixxttuurreess
Magnets

11. DDiiffffeerreenntt WWaayyss ttoo SSeeppaarraattee
MMiixxttuurreess
Dissolving

12. DDiiffffeerreenntt WWaayyss ttoo SSeeppaarraattee
MMiixxttuurreess
Evaporation

13. DDiiffffeerreenntt WWaayyss ttoo SSeeppaarraattee
MMiixxttuurreess
Density