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Tuesday, 14 May 2019

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.


Image result for borax crystals

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

Grow your own Sugar Crystals

Ratio: 1 cup sugar to 1/2 cup water

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: 



Image result for how to make salt crystals

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
Image result for borax crystals
One big crystalLarge, Medium, Small.Hard
Sugar
Image result for sugar crystals
CubeSmallHard
Salt
Image result for salt crystals

CubeSmallHard

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
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


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

6Beta-sulfur
Gypsum
Image result for monoclinic examples
Orthombic



7Alpha-sulphur
Cementite
Image result for Orthorhombic examples
Trigonal



4Trigonal trapezohedralImage result for trigonal crystal
Hexagonal



12 hexagonal crystal Image result for hexagonal crystal examples
Cubic



6diamond, fluoriteImage result for Cubic crystal examples
Tetragonal



7monoclinic
limestones
Image result for Tetragonal crystal examples

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