Chromatography

Aim:
To separate the different pigments in inks and dyes using paper chromatography.

Equipment:

• Ink from marker pens, food colouring or ballpoint pens
• 250mL beaker 
• A strip of filter paper
• Scissors 
• Water
• Pencil

1. Cut your filter paper into a thick strip.

Get all your equipment ready. 

2. Draw a ling about one finger from the bottom.

3. Draw one or two dots on top of the line.

4. Add a little bit of water and make
sure it doesn't touch the dots.

Growing Crystals

Aim:
I want to find out how to make crystals form in a supersaturated solution.

Equipment:

• Supersaturated solution Sodium Acetate 
• A seed crystal of sodium acetate 
• Bunsen burner 
• Boiling tube
• Scissor Tongs
• Heat Mat
• Funnel
• FIlter paper
• Small beaker

Method:

1. Get all your equipment ready.
2. Put safety glasses on.
3. Place the filter paper in the in the funnel and place the funnel in the beaker.
4. 
   

Solutions

Aim: To investigate the solubility of Calcium Chloride and Magnesium Oxide.

Equipment:

• Spatula 
• Stirring rod
• Beaker 
• Measuring cylinder 
• Calcium Chloride
• Magnesium Oxide

Method: 

1. Fill the beaker with 100mL of tap water.
2. Add a level spatula scoop of Calcium Chloride.
3. Stir the solution until all of the Calcium Chloride has dissolved.
4. Repeat steps 2 and 3 until no more Calcium Chloride will dissolve into the solution.
5. Record how many spatula scoops of Calcium Chloride were added.
6. Repeat the experiment with the Magnesium Oxide.

Magnesium = 5 spatula scoops 

Calcium Chloride = 7 spautla scoops

Making a Dilution Series

Aim: To make a dilution series to investigate the concentration

Equipment:

• A potassium permanganate crystal
• Six large test tubes
• Dropper
• A Tese tube 
• Safety Glasses
• Test tube rack

Method:

1. Put safety glasses on.
2. Place six tubes in the test tube rack.
3. Using the measuring cylinder, fill one test tube with 10mL of water and the other with 5mL of water.
4. Add a single crystal of potassium permanganate into the test tube with 10mL.
5. Using your dropped take 5mL of water from the test tube with 10mL and place it into one of the test tubes with 5mL to make 10mL, repeat with all of the test tubes. 
6. Rinse the dropper everytime you move 5mL of water.

The UK Influence on New Zealand

In our group, I'm working on fashion and clothing.

I have learnt that the UK brought most to every item of clothing to New Zealand.

The link to our slide.
https://docs.google.com/presentation/d/1479F9eSQY4hEE4J5islmeqoqaYX8uvhBVJfDFUUzc4I/edit?usp=sharing 

Separation

Aim:
To separate a solution from a precipitate (a precipitate is a sold that forms a liquid)

Equipment:

• Lead Nitrate 
• Potassium Iodide 
• Conical flask
• Stirring rod
• 250mL beaker 
• Funnel
• Filter paper

Method:

1. Put safety glasses on.
2. Pour 10mL of Potassium Iodide and 10mL of Lead Nitrate into a 250mL beaker.
3. Fold the filter paper in half two times and open it on one of the sides and make it into a cone shape.
4. Place the filter paper inside of the funnel.
5. Then pour the liquid in.

Results:
The liquids turned yellow, then it started to separate when we poured it onto the filter paper in the funnel.

Discussion:
When I mixed the two solutions together it turned into a pigmented yellow colour.
When we poured it into the funnel it filters through the filter paper and left a yellow residue.

Musical Drama

Drama

In our small group performance, we will be doing Mamma Mia Dancing Queens. So far we have rehearsed some of the acting/singing, we have done about 30 seconds to 1 minute.

Our characters.
Chloe - Tanya (Me)
Stevie - Donna
Alayna - Rosie

I think we need to improve on working a bit faster and working on our dance moves.

Bouncing Ball

Aim: I want to investigate how high a ball will bounce when it's been dropped from different heights.

Hypothesis: I predict that when the ball is dropped, it will bounce lower than it is dropped.

Method:

The equipment I need:

• Golf Ball
• Ruler
• Stand with boss head and clamp 

1. Attach the clamp to the stand

2.  Attach the ruler onto the stand (make sure the zero mark is on the ground) 

3. Hold the ball and drop it from the 100cm mark

4. Film the process to make sure you know where it bounces too

5. Repeat the experiment twice and record the measurements

6. Repeat the experiment using different heights  

Variables:

Independent Variables: The height from where the ball drops.

Dependent Variables: The height of where the ball bounces.

Controlled Variables: The surface the ball bounces, The type of ball, The Ruler.

Heights of Ball Dropped:

100cm = 84cm  

70cm = 60.5cm 

50cm = 44cm 

20cm = 16.5cm
0cm = 0cm

Discussion: Everytime we dropped it, it bounced a little less.

Conclusion:

Evaluation: