This document discusses mixtures and solutions. It defines a mixture as two or more materials stirred together, while a solution is a special type of mixture formed when a material dissolves in water. It asks questions about mixtures, solutions, and saturation points, such as how much salt can dissolve in 50mL of water. The document emphasizes investigating properties of mixtures and solutions through experimentation and observation.

1. Investigation 1
Mixtures and Solutions

2. Word Bank
 A mixture is two or more materials stirred together.
 A property is a characteristic of an object, something
you can observe such as size, color, shape, or texture.
 A solution is a special mixture formed when a material
dissolves in water.
 Dissolving is a process in which one material disperses
uniformly into another material, so that the first material
seems to disappear.

3. Content Inquiry
 Jose Garcia asked,
“What would happen if we mixed all
the material into one?”

4. Part 2

5. Part 2
What is a mixture?

6. Part 2
What is a mixture?
How can a mixture be separated?

7. Part 2
What is a mixture?
How can a mixture be separated?
If salt and water make a special kind of mixture called a
solution…then

8. Part 2
What is a mixture?
How can a mixture be separated?
If salt and water make a special kind of mixture called a
solution…then
Can you separate a solution with a screen? With a filter
paper?

9. Part 2
What is a mixture?
How can a mixture be separated?
If salt and water make a special kind of mixture called a
solution…then
Can you separate a solution with a screen? With a filter
paper?
How might you separate the ingredients in a solution?

11. Weighing the Water

12. Weighing the Water
Make and weigh the salt solution

13. ?
Will a solution made with 50 ml
of water and a spoon of salt have
the same mass as 50 ml of plain
water?
More mass? Less mass?
How can we find out?

14. ?
How can you determine the
number of grams of salt you put
in the water to make the
solution?

15. ?
You separated the gravel from
the water and the powder from
the water with filters.
How can you separate the salt
from the water?
How can you get the salt back?

16. Part 3

17. Part 4
 Jose Garcia asked,
“What would happen if we mixed all
the material into one?”

18. Open Ended Question
 Making and Mining Salt
Salt is used in many ways today. Use
at least three details from the
article showing how salt is used
today.

19. Investigation 2: Salt Saturation
We made a salt solution by
dissolving a spoon of salt in 50ml of
water. What do think would happen
if we put two spoons of salt in 50ml
of water? Would it dissolve to make
a solution? How about three
spoons? Five spoons?
12

20. Investigation 2: Salt Saturation
How can we find out what
might happen if you keep
adding salt to 50ml of water?
13

21. Investigation 2: Salt Saturation
The question you are challenged to
answer is “how much salt can you
dissolve in 50 ml of water?
How much water will you put in the
bottle at the start?
How much water will you add later?
Why would you not add any water later?
14

22. Investigation 2: Salt Saturation
What happened to the salt when you put
it in the water?
Where is the salt now?
What happened to the level of the liquid?
Why did the level go up?
15

23. Investigation 2: Salt Saturation
How do you know you hae a saturated
salt solution?
We have a saturated solution. How much
salt did it take to saturate 50ml of
water?
How much water will you add later?
Why would you not add any water later?
16

24. Salt Crystal

25. Line of Inquiry
How has salt positively affect
the world?
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26. Importance of salt
Salt provides two elements that are
essential for life and for good
health - sodium and chloride ions.
They are both elements that the
body cannot manufacture itself so it
must be supplied by food.
19

27. Importance of salt
Sodium is a mineral element that
plays a critical role in body
physiology. It controls the volume of
fluid in the body and helps maintain
the acid-base level.
20

28. Salt Crystals
Observe salt crystals in dishes.
Draw a picture of the salt.
Write down your observations.
21

29. Making Inferences
Clues from My inference
the story What I already know