Aim: To learn about a saturated solution and how to make crystals
Definition of solution:
A liquid mixture, when something is dissolved into a liquid (eg: sugar in water)
Definition of saturated:
Having or holding as much as can be absorbed of something (when no more sugar or borax can be dissolved into the water)
In groups of three you will make three different types of crystals and compare the results.
Ratio; 3 Tablespoons Borax per 1/2 cup water
Materials
1)Borax
2)Cups
3)Hot water
4)Stick
5)String
Process
Step 1:Add Hot water
Step 2:Add Borax
Step 3:Mix with Stick for ten minutes
Step 4:Make a star with some wire like shown above
Step 5:Use a peg and clip it to the star
Step 6:Put the star in the water and make sure the pegs not in water with it
Sugar Crystals
Materials
1)Sugar
2)Cups
3)Hot water
4)Stick
5)String
Process
Step 1:Add Hot water
Step 2:Add Sugar
Step 3:Mix with stick for ten minutes
Step 4:Get a string and tie it to a ice cream stick
Step 5:Put the string inside the water and the stick at the each end of cups
Step 6:
Ratio: 4 Tablespoons salt to 1/2 cup water
Materials
1)Salt
2)Cups
3)Hot water
4)Stick
5)String
Process
Step 1:Add hot water
Step 2:Add salt
Step 3:Mix with the stick for ten minutes
Step 4:Get a string and tie it to the ice cream stick
Step 5:Put the string inside the water and the end of stick touch both side of cup
Step 6:
Findings
Describe your crystals in the table below.
Crystal Type
|
Shape
(Describe the shape) |
Size
(of individual crystals) |
Hardness
(Crumbly to Rock Hard) |
Borax
 | a big crystal | Large, Medium, Small. | Hard |
Sugar
 | Cube | Small | Hard |
Salt
 | Cube | Small | Hard |
What crystals worked out best and why?:
Conclusion:
________________________________________________________________________
Conclusion:
________________________________________________________________________
After watching the videos as a class, explain how the following crystals are formed:
Type
|
Explanation
|
Salt
|
People have a big ocean of salt water and when the water evaporates the salt is found underneath the ground.
|
Sugar
|
People pull plants out of the ground and inside of the plant is sugar and people go through a big process to get the sugar out and ready.
|
Snowflakes
|
Snowflakes are formed from dust and when a lot of dust are formed it makes a snowflake but the weather has to be cold and icy for the snowflake to evolve.
|
CRYSTAL TYPES
AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS
 |
| Salt Crystals |
| Sugar Crystals |
 |
| Borax Crystals |
7 different crystal shapes
The 7 types of crystals
Type
|
Number of sides
|
2 examples
|
Image
|
Triclinic
| 7 | Turquoise. Rhodonite |  |
Monoclinic
| |||
Orthombic
| |||
Trigonal
| |||
Hexagonal
| |||
Cubic
| |||
Tetragonal
|
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