1. Opening assignment – Page 41
Use two column notes (LEAVE ROOM UNDER EACH DEFINTION FOR EXAMPLES!!)
Find the definitions of
mixture,
Homogenous mixture
Heterogeneous mixture

2. Mixtures
A mixture is…..two or more substances mixed together. They can be separated!
Think about ketchup…….Ketchup is tiny bits of tomato, seasonings & vinegar.
A blob of ketchup……….
Still can taste all the seasonings

3. Important!!!
In a mixture, each substance keeps its individual properties.
Think of mixing salt in water……..
…………its still salty and its still wet!

4. Mixtures
What are they? What types of mixtures are there? And how can we separate them???

5. Heterogeneous Mixture
You can see the different parts!
Think about a salad. What are the different parts of a salad?

6. Homogeneous Mixtures Substances are evenly mixed.
Think about stirring sugar into a cup of hot tea. You can’t see the sugar but you know it is there.

7. Solution – a homogenous mixture
An well mixed mixture that consists of a solute and a solvent

8. Examples of solutions

9. Examples of solutions Brass Homogeneous mixture of zinc and copper
Stainless steel
Solution of chromium, nickel and carbon in iron

10. Air is a homogeneous mixture
Nitrogen - solvent
Oxygen
Carbon dioxide
Water vapor
And other gasses

11. Other solutions Colloids
A mixture that contains small undissolved particles that DO NOT settle out
TOO Small to be seen--- but big enough to scatter by light
Fog
Milk
mayonnaise,
Shaving

12. Using physical properties to separate a mixture

13. Use a magnet

14. Mixtures can be separated we use the different properties they have to separate them!
Unlike compounds!

15. Evaporation

16. Distilling

17. Exit Card Which is a compound, Which is a mixture Which is a element?????
Why?