Separation via chromatography

Today in Science we did the same experiment as last week. Though this time we used markers instead of leaves we've ground.

Today's experiment and last weeks experiment are very different.

Last weeks experiment:
For last weeks experiment, we grounded leaves to use.

The pigments from the leaves did not work as well as we expected. This is because we used a lot more solvent than the solute.

If we used more solute than the solvent then maybe it would've worked better.

This weeks experiment:
This weeks experiment worked perfectly. We can finally see the different pigments in one colour.

This is probably because the pigments in the markers are more concentrated than the ones in the leaves.

As you can see in the picture there's a colour that goes up faster than the other colours. This is because that colour is lighter than the other pigments.

The best way to think of it is having a pebble and grains of sand and dropping them into a stream. Which one will fall first? The sand will fall first, right? This is because the sand is a lot lighter than the pebble.

Extracting Water From Coke

Aim: To see how much sugar is in normal/diet coke.


Methods:
-We first set up our equipment

Materials:
-Beaker
-Tube
-Bunsen Burner
-Stand
-Boiling Tube

Results:
On our first try, our experiment overflowed and exploded and landed inside the beaker. This is because we added too much heat and the tube was too close to the bottom of the boiling tube.



On our second try, our experiment had finally work and the water was finally getting separated from the sugary substance. It has worked because we were no longer adding too much heat to the boiling tube and the tube was no longer close to the bottom of the tube.

Chromatography

Chromatography: The act of using a chemical to separate a mixture.

Method:

1. Grab some leaves (5 pieces of the same type)
2. Rip them into small pieces
3. Put them in the pestle
4. Grind it using the mortar 
5. Put a few drops of Ethanol
6. Then grind it completely.

Nutrition Labels

Which packaging do you like? Why?
I like the packaging of the Oak Apricot Halves.
This is because it shows what the Apricot will look like, how the font is big and easy to read and how it says that the Apricot is in 'Light Syrup'.

What information is on the packaging? What are the legal requirements?
Nutrition Information
(SERVINGS PER PACKAGE:2 SERVING SIZE:250g)
                            AVG QUANTITY PER SERVING      AVG QUANTITY PER 100g
Energy                 595kJ                                              290kJ
Protein                 1.2g                                                  0.6g
Fat, Total             0g                                                    0g
-Saturated
Carbohydrate       32.6g                                               15.9g
-Sugars
Dietary Fibre       2.5g                                                 1.2 g
Sodium                 11mg                                                5mg

Legal Requirements:
-Be Legible
-Tell the truth
-Date marking
-Name or description of the food
-Name and address of the business
-Warning and advisory statements
-Ingredients list
-Percentage labelling
-Nutrition information panel
-Use and storage directions

What do food labels tell us?
Labels give us information that can help us decide whether we are able to eat this food or not. It also helps us decides what to choose as part of an overall healthy eating plan.

What are the first two ingredients on the list? Why are they named first?
First 2 ingredients:
-Apricot
-Water

These 2 are named first because they are both used in the greatest amount first. They have used Apricots a lot so that is why it's first and then they used a little bit of water so that is why it is listed as the second.

Musical Theatre

Jesus Christ Superstar

Who wrote the musical?
Andrew Lloyd Webber and Tim Rice both wrote the musical.

What is it about?
It is a 1970 rock musical. It started as a rock opera concept album before its Broadway debut in 1971. It represents political and interpersonal struggles between Judas Iscariot and Jesus that are not shown in the Bible.

What do I like about this show?
Something I like about this show is the way they all sing together and how they all came together with Jesus in the end.

Wicked

Who wrote the musical?
Winnie Holzman wrote the musical.

What is it about?
The musical is about someone whom people have bullied because of her skin colour. All this bullying has made her become a bully to others, although in the very beginning she was very nice.

What do I like about this show?
I like the way they act, it seems so realistic. I also like how they use clear and loud voices.

I like both of these shows because they are both very different. The Jesus Christ Superstar had a lot of people singing from the very beginning, while the Wicked one only had 2 people singing at the start. The singers are very good at dancing and singing at the same time. Especially Idina Menzel who had an asthma attack before the show started.

Art Checkpoint

Dilution Series

Aim: Investigating diluting a solution
Result: The more solvent we added to the solution the less concentrated it became.

Measuring

LO: Students are able to demonstrate their knowledge and skills when it comes to baking and the fundamental ideas for it to be successful.

Key points:
Spoons
-Metal
-1t 1T
-1/8 1/4 1/2

Measuring Cups
-Dry + Wet
-Glass- Liquid
-Dry

Techniques on how to measure
- Hold spoon level
-Dip + Sweep with edge of knife
-Flour- Spoon + Sweep
-Sift icing sugar
-Pack brown sugar