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) Water
3) Cup
4) Stick
5) String
6) Pipe Cleaner
Process
Step 1: Put some Borax in a cup
Step 2: Pour water into the cup fill the cup half way
Step 3: Stir the Borax and water
Step 4: Use the stick that was used for stirring the Borax and water and tie some string to the to the stick and tie the string to pipe cleaner
Step 5: Wait until the pipe cleaner turns into a Crystal
Sugar Crystals
Materials
1)
2)
3)
4)
5)
Process
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Step 6:
Ratio: 4 Tablespoons salt to 1/2 cup water
Materials
1)
2)
3)
4)
5)
Process
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
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
| |||
Sugar
| |||
Salt
|
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
| |
Sugar
| |
Snowflakes
|
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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