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Thursday 14 March 2019

science on crystals

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.

Borax Crystals

Image result for borax crystals

Ratio; 3 Tablespoons Borax per 1/2 cup water
Materials

1)
2)
3)
4)
5)

Process

Step 1:
Step 2:
Step 3: 
Step 4:
Step 5:
Step 6:

Sugar Crystals

Grow your own Sugar Crystals

Ratio: 1 cup sugar to 1/2 cup water
Materials

1) K
2)
3)
4)
5)

Process

Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Step 6:


Salt Crystals

Image result for how to make salt crystals

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



circle medium crumble  
Sugar




   
Salt



a tiny tiny thin straw tiny firm and as hard a rock

What crystals worked out best and why?:

Conclusion:   _________________________________________________________________

sugar  cane  cut it up roll get the juice heat it syrup CRYSTALLISATION 



CRYSTAL TYPES


AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS


Image result for salt crystal image
Salt Crystals

Image result for sugar crystal image
Sugar Crystals

Image result for borax crystal image
Borax Crystals


7 different crystal shapes




The 7 types of crystals


Type
Number of sides
2 examples
Image
Triclinic
Definition:


10roof of a house rectangle Image result for triclinic  pics
Monoclinic
Definition:


6diamond and rhombus Image result for monoclinic shape
Orthombic
Definition:


10rectangle and cube Image result for rectangle cube
Trigonal
Definition:


10rectangle and pointy hat Image result for trigonal
Hexagonal
Definition:


6a door and diamond Image result for hexagonal
Cubic
Definition:


6square and rectangle Image result for cubic
Tetragonal
Definition:


12pyramids and doors Image result for tetragonal

Explain how the following crystals are formed?



Type

Salt


Sugar


Snowflakes


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