ShapesOf Crystals

AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS

 

The 7 types of crystals

Type	Number of sides	Image
Triclinic Definition:	7
Monoclinic Definition:	10
Orthombic Definition: denoting a crystal system or three-dimensional geometrical arrangement having three unequal axes at right angles.	6
Trigonal Definition: denoting a crystal system or three-dimensional geometrical arrangement having three equal axes separated by equal angles that are not right angles.	10
Hexagonal Definition: denoting a crystal system or three-dimensional geometrical arrangement having three axes of equal length separated by 60° and a fourth axis of a different length at right angles to these. "a hexagonal close-packed crystal structure"	8
Cubic Definition: a cubic equation, or a curve described by one.	6
Tetragonal Definition: denoting a crystal system or three-dimensional geometrical arrangement having three axes at right angles, two of them equal.	12

Explain how the following crystals are formed?

Type
Salt	Water absorbers to the sun and just leaves into crystals.
Sugar	Refined sugar is made from raw sugar that has undergone a refining process to remove the molasses. Raw sugar is sucrose which is extracted from sugarcane or sugar beet.  The sugar syrup is concentrated by boiling and then cooled and seeded with sugar crystals, causing the sugar to crystallize out.
Snowflakes	A snowflake begins to form when an extremely cold water droplet freezes onto a pollen or dust particle in the sky. This creates an ice crystal. As the ice crystal falls to the ground, water vapor freezes onto the primary crystal, building new crystals –the six arms of the snowflake.

10 Ingredients Diagram

Aim: To learn the names of 10 household chemicals, their elements, and reactions with other substances.

Equipment:

1. Dishwashing Detergent

2. Lemon

3. Salt

4. Vinegar

5. Sugar

6. Air Freshener

7. Onion

8. Lemonade

9. Bleach

10. Baking Soda

NAME

CHEMICAL

IMAGE

SOLID/LIQUID/GAS

Dishwashing detergent	sodium lauryl sulfate		LIQUID
lemon	citric acid and malic acid		SOLID
salt	sodium chloride,		SOLID
vineger	acetic acid		LIQUID
sugar	Lactose		SOLID
Air Freshner	volatile organic		GAS
Onion	synthase enzyme		SOLID
lemonade	synthase enzyme		LIQUID
bleach	peroxide		LIQUID
Baking soda	Sodium bicarbonate		SOLID

Crazy Crystal

Aim.To make Crystals



Process. Get the container put 8 tsp of salt sugar or borax and put half cup water in container stir Intel it is a saturated mixture then pick up pipe cleaner and peg the pipe cleaner and let sit in saturated mixture.


Borax

Materials

1.Borax 8 Tsp

2.Container

3.Water H20

4.Pipe Cleaners

5.Peg

Process. Get the container put 8 tsp of salt sugar or borax and put half cup water in container stir Intel
it is a saturated mixture then pick up pipe cleaner and peg the pipe cleaner and let sit in saturated
mixture.



Results: Borax was the successful experiment and had formed crystals around all the pipe cleaners.
The Crystals have grown about 5 mm off the pipe cleaners.

Borax Photo

Sugar

Materials

1.Sugar

2.Container

3.Water H20

4.Pipe cleaner

4.Peg

5.Tsp



Process. Get the container put 8tsp of salt sugar or borax and put half cup water in container stir
Intel it is a saturated mixture then pick up pipe cleaner and peg the pipe cleaner and let sit in saturated
mixture.

Sugar Photo

Results:Nothing happened with the experiment and no crystals were formed the sugar mixture did
not grow at all it just saturated the pipe cleaners.





Salt

Materials

1.Salt 8 Tsp

2.Container

3.Water H20 1/2 cup

4.Tsp

5.Peg

6.Pipe cleaner



Process. Get the container put 8 tsp of salt sugar or borax and put half cup water in container stir
Intel it is a saturated mixture then pick up pipe cleaner and peg the pipe cleaner and let sit in
saturated mixture.



Results: Not much happened with this experiment the salt crystals it did not form any crystals at all.

Th salt mixture only saturated the pipe cleaners like the sugar mixture.

Salt Photo

Rainbow Paper

Aim: To separate colours by using the process of chromatography.

Definition: A technique for separating the different parts of a mixture / solid using liquid.

Rainbow paper

Skittles

Aim: To separate colours by using the process of chromatography.

Materials;

1. Container
2. Filterpaer
3. Liquid H20


Process:

Step 1:Draw a line across 2cm from the top of the filter paper and fold then do the same on the bottom 4cm put black green red dots on the 4cm line fill container up just so the water touches the paper.


Findings: What happened? The colours raced to the top of the paper and spread.

Reflection: What have I learnt from this experiment? That paper and ink make the ink spread.

What did the colours do? Race to the top of the paper.
Did the colours mix together? Yes they did sort of.

Mirrors

Mirrors

States Of Matter

Aim: To observe water as it changes from a solid to a liquid to a gas.

Equipment: Bunsen burner, tripod, gauze mat and a Beaker

Method: Half full the beaker with ice than light the Bunsen burner after turning the gas on and the record the temperature of the water or ice .

Here are Waisea and myne results after doing this.

21 c

25 c

17 c

20 c

30 c

50 c

70 c

80 c

98 c

100 c

101 c

103 c

105 c

10min

Turangawaewae - What we think?

 WALT: Numbers 1-20. Ask people about what the favourite number is for a group of people.












WALT: Reflexes. Drop a ruler between the forefinger and thumb 10 times. Do it with a friend and record how far the ruler drops before they grab hold of it.

Definition:

Picture of an example:









WALT: