science

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

Crystal video

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

Borax Crystals time lapse video

Ratio; 3 Tablespoons Borax per 1/2 cup water

Materials

1) cup

2)salt

3)sugar

4)borax

5)mixing tool

6)string

7) stick

Process

Step 1:get a cup.

Step 2: then the teacher puts hot water in to your cup.

Step 3:then the teacher comes to you and puts sugar,salt or borax in to your cup.

Step 4:then you mix the sugar,salt or borax.

Step 5:then you get a stick and string and you rap the string around the stick.

Step 6:then you leave the stick and string in the water to form the crystals.

Sugar Crystals

Sugar crystals video

Ratio: 1 cup sugar to 1/2 cup water

Materials

1)sugar

2)a plastic cup

3)string

4)stick

5)hot water

Process

Step 1:get a cup.

Step 2: then the teacher puts hot water in to your cup.

Step 3:then the teacher comes to you and puts sugar in to your cup.

Step 4:then you mix the sugar.

Step 5:then you get a stick and string and you rap the string around the stick.

Step 6:then you leave the stick and string in the water to form the crystals.

Salt Crystals

Salt crystals time lapse video

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

1)a plastic cup

3)string

4)stick

5)hot water

6)salt

Process

Step 1::get a cup.

Step 2: then the teacher puts hot water in to your cup.

Step 3:then the teacher comes to you and puts salt in to your cup.

Step 4:then you mix the salt.

Step 5:then you get a stick and string and you rap the string around the stick.

Step 6:then you leave the stick and string in the water to form the crystals.

Findings

Describe the crystals in the table below.

Crystal Type	Shape	Size	Hardness
Borax	a cube with sharp ends.	the size of a rock	2 - 2.5.
Sugar	some are cube shaped and some are not cube shaped.	very small.	has hard as ice or rock.
Salt	cube shaped.	2 – 600 μm	2.71

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How is salt formed
How is sugar formed
How are snowflakes made 

Explain how the following crystals are formed:

Type	Explanation
Salt	salt is made by the ocean
Sugar	sugar is made by sugar bets
Snowflakes	snowflakes are made because of dust poling and water.

CRYSTAL TYPES

AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS

Salt Crystals

Sugar Crystals

Borax Crystals

7 different crystal shapes

The 6 types of crystals

Type	Number of sides	Picture	2 EXAMPLES
Monoclinic
Hexagonal
Orthormbic
Triclinic / trigonal
Hexagonal
Isometric ( cubic)
Tetragonal