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Friday 15 March 2019

Home chemistry

Home Chemistry - Crazy 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)Salt
2)Borax
3)Hot water
4)Sugar 
5)Cups

Process

Step 1:Get your cups with your ingredients.
Step 2:Get your Hot water and put in the cup with the ingredients.
Step 3:Mix your hot water and with your ingredients.
Step 4:Get your stick and put your string in the stick and put your pipe cleaner.
Step 5:Put your name.
Step 6:Put in the tray.

Sugar Crystals

Grow your own Sugar Crystals

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

1)Sugar.
2)Cups.
3)Hot water.
4)Salt.
5)Borax.

Process

Step 1:Get your cups with your ingredients.
Step 2:Get your hot water and put in the cup with the ingredients
Step 3:Mix your hot water and with your ingredients.
Step 4:Get your stick and put your string in the stick and put your pipe cleaner.
Step 5:Put your name.
Step 6:Put in the tray.


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


I fail because it did workSmallCrumbly
Sugar






Salt







What crystals worked out best and why?:

Conclusion:

________________________________________________________________________




After watching the videos as a class, explain how the following crystals are formed:


Type
Explanation
Salt
sea water,pond,sun,evaporates water.


Sugar
sugar cane,chop it up,squish/roll,juice heat,evaporate water,sugar crystalises.


Snowflakes
dust,water freezers to it.




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

7

Turquoise Rhodonite

Image result for rhodonite
Monoclinic


8 sides
Orthombic



6 sides 
Related image
Trigonal



10 sides
Image result for trigonal
Hexagonal



8 sides
Image result for hexagonal
Cubic



6 sides
Image result for cubic
Tetragonal



12 sides
Image result for tetragonal


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