crystals

Aim: To learn about a saturated solution and how to make crystals

Crystal video

Definition of the 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

Borax Crystals time-lapse video

Ratio; 3 Tablespoons Borax per 1/2 cup water

Materials

1)peg

2)string

3)cups

4)salt

5) sugar

6 borax

7 pipe cleaners

8 stirring sticks

Process

Step 1: shape pipe cleaners into a star shape

Step 2: make up a borax solution

Step 3: hang a star on peg

Step 4: label cup

Step 5: borax in the cup and ad water and steered for 5 or 10 minutes

Step 6: and did the same thing for sugar and salt

Sugar Crystals

Sugar crystals video

Ratio: 1 cup sugar to 1/2 cup water

Materials

1)peg

2)string

3)cups

4)sugar 4)

5) pipe cleaners

6) stirring sticks

Process

Step 1: shape pipe cleaners into a star shape

Step 2: make up a borax solution

Step 3: hang a star on peg

Step 4: label cup

Step 5: borax in the cup and ad water and steered for 5 or 10 minutes

Step 6: and did the same thing for sugar and salt

Salt Crystals

Salt crystals time-lapse video

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

1)peg

2)string

3)cups

 4)salt

5) pipe cleaners

6) stirring sticks

Process

Step 1: shape pipe cleaners into a star shape

Step 2: make up a borax solution

Step 3: hang a star on peg

Step 4: label cup

Step 5: borax in the cup and ad water and steered for 5 or 10 minutes

Step 6: and did the same thing for sugar and salt

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:

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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	6	mica azurite
Orthorhombicfft	7	sulfur topaz
Trigonal	8	albite rhodonite
Hexagonal
Cubic
Tetragonal