1. Mixtures and Solutions

2. Homogeneous (Solution):
Matter:
Anything that has mass and takes up space
Mixture:
Two or more substances that are physically blended but not chemically bonded together (ex: granite, air)
*Heterogeneous
*Homogeneous
Substance:
Always made of the same combination of atom
*Element
*Compound
Element:
Matter made of only one type of atom
Oxygen (O2,)
Chlorine (Cl2)
Carbon (C)
Heterogeneous:
A mixture in which substances are not evenly mixed
(ex: granite, blood, salad, chicken soup, pizza, chocolate chip cookies)
*Can be physically separate with out breaking bonds
Bonds Breaking
Chemical Change
Compound:
Matter made of atoms of 2 or more elements. Chemically bonded
-Water (H2O)
- Salt (NaCl)
- Methane (CH4)
Homogeneous (Solution):
a mixture in which 2 or more substances are evenly mixed on the atomic level but not bonded
(ex: air, salt water, soda)
Bonds
Forming

3. Solute, Solvent, Solution
Mixture Matter that can vary in composition, combination of 2 or more substances that are physically blended together, can be separated by physical methods
Heterogeneous mixture mixture that does not have a uniform blend, can see the different parts (ex: gravel mixture)
Solution A mixture in which two or more substances are evenly mixed on the atomic level but not bonded together (ex: soda, air); also known as a homogenous mixture
Solvent in a solution the substance that is present in the largest amount
Solute all other substances in a solution

4. Review Solutions Are solutions homogeneous or heterogeneous?
Are solutions mixtures or pure substances?
Mixtures
What kind of states can a solution be?
Solid, liquid, or gas
What are the two “s” words that every solution must have?
A solute and a solvent

5. In a salt water solution…
Is salt the solute or the solvent?
Solute
Is water the solute or the solvent?
Solvent
What does the solute do?
Gets dissolved
What does the solvent do?
Does the dissolving

6. A Salt Water Solution
Solute (salt)
Animation
Solvent (water)

7. Dissolving

8. What is the solute and what is the solvent
What is the solute and what is the solvent?   Hint: The solvent is always in the greater amount.
SOLUTION
1. Cigarette Smoke spread through Air Air Cigarette Smoke  
2. Gold Ring Copper Gold
3. Cup of Coffee Caffeine Water
4. Sterling Silver Silver Copper
5. Water in Fish Tank Water Oxygen
6. Sealed Can of Pop Carbon Dioxide Sugar Water
7. Air Nitrogen Oxygen
8. Hard Water Minerals Water
9. Maple Syrup Water Sugar
10. Vinegar Acetic Acid Water 11. Ocean Water Salt Water
12. Brass Zinc Copper
13. Humid Air Water Air
Make up your own examples of solutions.

9. Online Quiz Go to the Jenkins Home page Click on the “Staff” tab
Click on the Easy icon
On the right side of the screen, enter the code
XA7LA4M
Begin taking the “Mixtures Quiz”

10. Mixtures and Solutions Questions
What are the two types of matter?
What are the two types of substances?
Are you breaking or forming chemical bonds when you move from an element to a compound?
What are two types of mixtures?
Describe the difference between a heterogeneous and a homogenous mixture.
In each mixture identify the solution, solute and solvent
Ocean water, salt, water
Antifreeze, water, ethylene glycol
Syrup, water, soda pop, CO2
What are physical properties used for?
Is the property described size dependent or size independent
The boiling point of water
The volume of coffee in a mug

11. Answers 1. What are the two types of matter? Substances and Mixtures
2. What are the two types of substances?
Elements and compounds
3. Are you breaking or forming chemical bonds when you move from an element to a compound?
Forming bonds
4. What are two types of mixtures?
Heterogeneous and homogenous
5. Describe the difference between a heterogeneous and a homogenous mixture.
heterogeneous mixture is unevenly mixed and homogenous mixture is evenly mixed
6. In each mixture identify the solution, solute and solvent
A) Ocean water (solution), salt (solute), water (solvent)
B) Antifreeze (solution), water (solvent), ethylene glycol (solute)
C) Syrup (solute), water (solvent), soda pop (solution), CO2 (solute)
7. What are physical properties used for?
It is a characteristic of matter that you can observe or measure without changing the identity of the matter; useful to separate mixtures
8. Is the property described size dependent or size independent
The boiling point of water – size-independent
The volume of coffee in a mug – size-dependent

12. Solubility
Concentration – the amount of a particular solute in a solvent
Saturated solution – a solution that contains the maximum amount of solute the solvent can hold at a given temperature and pressure
Unsaturated solution – solution that can still dissolve more solute at a given temperature and pressure

13. Supersaturated
Unsaturated
Saturated
Temperature
Solute (g) in 100 g of H2O (l)
Solubility
Saturated – describes a solution that has dissolved the MAXIMUM amount of solute
Unsaturated – describes a solution that has LESS than the max amount of dissolved
Supersaturated - Describes a solution that has dissolved MORE than the maximum amount of solute, reached by heating then cooling

14. Your mission…..
10 minutes to separate the mixture and get the sand/pebbles in one cup and the salt in another cup
The materials you are allowed to use
Screen
Coffee filter
2 cups
Water
Popsicle stick
When you are finished you will be writing down what you did to separate your mixture.

15. Separating a Mixture of Salt and Rocks
Step to Separate
Property Used
1. Use the screen to separate the larger rocks from the sand and salt
Volume (filtration)
2. Add water to the sand and salt mixture and stir the mixture to dissolve the salt in the water
Solubility
3. Pour the salt water and sand onto the coffee filter to separate the salt water from the sand

16. Reflection Answer the questions using a constructed response
Describe how you separated the rock/sand mixture.
Did you separate the salt from the rest of the mixture.
Explain how you could do better if you were going to do a separation like this again.

17. Cartoon Conversations
First create visuals or icons that represent each concept
Then draw a cartoon that shows the concepts interacting with each other and having a conversation with each other, relevant to separating mixtures

18. Step 1 Step 2 Concept 1 Concept 2 Concept 3 Concept 4
Turn your paper so it is landscape. Now fold your paper as shown below. (There will be 3 sections).
Next, with flaps closed, draw a line that bisects the outside of each flap. (Each flap will have two sections)
Concept 1
Concept 2
Concept 3
Concept 4

19. Step 3 Step 4 Term 1 Term 2 Term 3 Term 4
Now, open flaps and draw lines across the inside of the flaps.
Choose four terms. Write each term at the top of the square; then draw a picture/icon to represent each. (see ex. below)
Term 1
Term 2
Term 3
Term 4

20. List of terms to choose from Only need to pick out 4 terms to use.
Density Magnetism Solubility Mass Volume State of Matter Melting Point Boiling Point Conductivity

21. Step 5: On the back of each flap, write a list of bullet points about each concept on the appropriate inside flap
Write as many details as you can. Feel free to check with a neighbor to see if they have any ideas for you!
If you need extra information, feel free to use the textbook!
Bulleted
List
Here
Name and Picture Here
Bulleted
List
Here
Name and Picture Here

22. Step 6: Create a cartoon in the middle of the poster.
You may use 1-4 panels for your cartoon.
All concept cartoon drawings must speak at least once
All cartoon drawings must interact with each other.
Use the word “because” in statements.
Write out what is said BEFORE drawing the “talk bubble.”

23. Scenarios to use in the middle
All stuck on a desert island
Family dinner
Road trip
Slumber party

25. Mixture #2 Separation
Separate a mixture of paper clip clippings, rice and salt
MUST find the mass of each of the parts.
You can use
screen
Coffee filter
2 cups
Magnet

26. Mixture #2
First plan (a few steps) how you want to separate the mixture of rice, salt and clippings.
Step to Separate
Property Used

27. Mixture #2 (rice, salt, paper clip clippings)
Mass of Cup (grams)
Mass of paper clip clippings (grams)
Mass of Rice (grams)
Mass of salt (grams)
Sources of Error: List 3

28. Deuces Wild Use all of the vocabulary from the “Mixtures and Solutions Unit Overview” sheet
Roll the dice to determine which activity your group will complete for each word. TWO’s are wild! If you roll a two, choose any of the five activities listed. Write your answers on the paper provided. Use your notebook to make sure that you are practicing correctly.
Write it 5x’s and Say Aloud 5x’s
WILD!
Write an example of the word from your life.
Draw a symbol or graphic that shows the meaning of the word
Send “spies” to another group and bring back something to share (related to the topic). Write down what you find.
Complete the sentence starter: (The word) is like __________ because…