1. Does it create a physical or chemical change?
Key Question:
What is a mixture & how do you separate it?
Warm-Up:
What is a mixture??
Does it create a physical or chemical change?

2. Add this to your vocabulary section.
mixture: two or more substances that are mixed together, but not chemically combined.
In a mixture the individual
substances keep their
separate properties.

3. A salad is mixture. It is easy to see the pieces of lettuce, tomatoes, cucumbers, and other ingredients and each of these parts could be separated by physical means.

4. * Mixtures can be separated into their original parts.
BUN
MEAT
TOMATO
LETTUCE

5. MIXTURES
What are some mixtures
you see everyday?

6. Is Kool-Aid drink a mixture?????
So……
Is Kool-Aid drink a mixture?????
Why or Why not?

7. (Add this to worksheet AND
Special Mixtures:
Solution – a special mixture where one or more of the substances dissolves in the mixture.
Examples: Kool-Aid, salt water, sweet tea
(Add this to worksheet AND
vocabulary page)
Add examples to sentence box in vocab. section.

8. We can classify mixtures based on:
Solubility: ability to dissolve in a liquid
Magnetism: the attraction to a magnet
Boiling Point: the temperature at which a liquid changes into a gas

9. Solubility: A glass of water with salt dissolved in it would be a mixture. Salt has a high solubility in water because it dissolves easily & makes a solution. The salt may be dissolved but it is still there. This is why it is a mixture! You can boil off the water and still have salt left over. If you put sand into a glass of water, it is considered to be a mixture, too. Sand has a low solubility level in water because the sand does not dissolve nor make a solution.

10. Techniques to Separate Solutions
Slotted spoons, sifters, magnets, etc. won’t work for separating solutions.
SO…What tools or methods could be used to separate solutions?
Filtration (using a filter)
Evaporation/Boiling
Paper Chromatography

11. Filtration:
To separate solid
particles from a liquid.

12. Evaporation:
To separate salt from water. The water will evaporate (change from a liquid into a gas) leaving the salt crystals behind.

13. Property
Separation Technique
Soluble
Dissolve the solid in water and then evaporate the water
Magnetic
Use a magnet to remove the metal
Boiling Point
Use distillation to separate two liquids with two different boiling points
Particle Size
Filter out solid particles from a liquid

14. Now test your knowledge at this website activity –
Mixtures and Solutions | Junkyard Analysis

15. Ways to Separate Mixtures #1
** Fill in your chart as you complete the interactive.

16. Ways to separate mixtures #2
Ways to separate mixtures #2 *** Fill in your packet: “Separating Mixtures Notes” as you go through the site.
BBC - KS3 Bitesize: Science - Compounds and mixtures - Separating mixtures

17. Textbook Time
Use textbook page 13 to complete the front of your worksheet.
*You may work with your partner.
FINISHED?? Go to next slide and do the websites in order.

18. Websites BBC - Digger and the Gang - Looping the loop
Do these IN ORDER!!
BBC - Digger and the Gang - Looping the loop
Chem4Kids.com: Matter: Mixtures scroll down to “Take Quiz on Mixtures”
Quia - Chapter 11-Separating Mixtures Do the “Matching” & “Concentration”
Chem4Kids.com: Matter: Solutions READ 1st, then scroll down to “Take Quiz on Solutions”