Investigating State Changes

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

Equipment:

• 250mL beaker
• Thermometer
• Bunsen Burner
• Heatproof Mat
• Tripod
• Gauze Mat
• Stopwatch
• Retort sort
• Clamp
• Ice cubes

Method:

• Put your ice in your beaker and place your thermometer and set up your equipment.
• Attach your retort stand and clamp to your thermometer (make sure your thermometer is covered but not touching the bottom of the beaker)
• Light the Bunsen burner and start timing with your stopwatch.
• Measure and record the temperature every minute.
• Continue recording until the water has started to boil.

Results:

0 minutes: 0°c

1 minute: 40°c

2 minutes: 58°c

3 minutes: 93°c

Music Dance Performance

Music Dance Performance

What have I learnt?
I have learnt to work as a group well practising a dance

How does this work show my learning?
Because we have completed our dance and have practice

What did I find challenging?
Doing the moves that were really fast.

What would I do differently if I did this again?
Do a song that was a bit more chill and easier.

What did I enjoy?
Being able to do the tricks.
Performing as a group.

What am I wondering?
How long did it take the real people that dance to this to practice.

What was it like performing on the day?
It was really scaring, fun and exciting.
It was also really cool watching the other classes perform.

https://drive.google.com/file/d/1DsvNltNC8Vshgd5mxk9MyQYmHdYU1veJ/view
Class Performance On Stage

Chromatography

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

Equipment:

• Ink from maker pens/food colouring/ ballpoint pens
• 250mL Beaker
• A strip of filter paper
• scissors
• pencil
• water

Method

Cut your filter paper into a strip like this

Put your thumb at the end of the filter paper and draw a line like this

Then add 2 dots using colored makers like this

Fill your beaker up with water but only add a little bit

Place your filter paper into the beaker like this and fold the excess paper over the beaker

Wait for it to rise and should turn out like this.

Growing Crystals

Aim:
I want to find out to make crystals form in a super-saturated solution.

Equipment:

• A super-saturated solution of Sodium Acetate
• A seed crystal of Sodium Acetate
• Bunsen burner
• Heat Mat
• Boiling tube
• Scissor Tongs
• Funnel
• Filter paper
• A small beaker

Method:

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

 

Some Crystals that were stuck to the filter paper

Some of the crystals in the heating tube

Separating Mixtures

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

Equipment:

• Lead Nitrate
• Potassium Iodide
• Conical Flask
• Striing 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 a piece of filter paper in half 2 times and open it up on one of the sides to make it into a cone shape.
4. Place the cone filter paper into a funnel and pour the liquid through the funnel into another beaker.

Solutions

Aim: 

To investigate the solubility of Calcium Chloride and Magnesium Oxide.

Equipment:

• Spatula 
• A stirring rod
• Beaker
• Measuring cylinder
• Calcium Chloride
• Magnesium Oxide

Method

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

Magnesium Oxide

Magnesium Oxide = 5 spatula scoops

Calcium Chloride = 7 spatula scoops

Calcium Oxide

Making A Dilution Series

Aim: To make a dilution series to investigate concentration

Equipment:

• A potassium permanganate crystal
• Test tube rack
• 10mL measuring cylinder
• Test tubes
• Safety glasses   
• Dropper

Method

1. Put your safety glasses on.
2. Place the six tubes in the test tube rack.
3. Using the measuring cylinder, fill one test tube with 10mL of water the rest with 5mL of water.
4. Add a single crystal of potassium permanganate to the test tube with 10mL of water.
5. Using your dropper take 5mL of water from the 10mL water and add to the second test tube.
6. Make sure that you rinse your dropper everytime you move 5mL of water.
7. Repeat step 5 with all your test tubes until you have the same result as the photos.