How to make Hokey Pokey

How to make Hokey Pokey

Ingredients:
50g of sugar
1/2 tablespoon of water
1 tablespoon of golden syrup
1/2 teaspoon of bicarbonate of soda

Method:
1. Put the ingredients except for the bicarbonate of soda into a saucepan and place on a low heat
2. Stir until all the has dissolved. Raise the heat slightly so that it bubbles, and stir occasionally until you cannot feel any sugar at the bottom of the pan
3. Take off the heat
4. Add bicarbonate of soda and stir
5. It should all froth up with bubbles in the pan
6. Pour out into your tinfoil sheet
7. Allow cooling

Observation:
Here is what we made.

Metal Carbonates and Acid

Testing for Carbon Dioxide Gas

Aim:

To show that carbon dioxide gas is produced when a metal carbonate reacts with acid.

Experiment 1:

Method:

1. Light your Bunsen Burner.

2. Add a 'pea-sized' amount of the metal carbonate into one of the boiling tubes.

3. Place this boiling tube into a test tube rack. Ensure you have the bung and delivery tube ready.

4. Add 5ml of acid to the boiling tube and quickly insert the bung and delivery tube into the mouth of the boiling tube. 

5. Holding the other boiling tube with your tongs, capture the gas produced. 

6. When you think the tube is full, your lab partner should light a wooden splint.

7. Carefully remove the boiling tube from under the delivery tube, taking care to keep it facing upright.

8. Insert the burning splint into the mouth of the test tube.

Observation:
It took out the flame. Because of the carbon dioxide.

Experiment 2:

Method:

1. Light your Bunsen Burner.

2. Add a 'pea-sized' amount of the metal carbonate into one of the boiling tubes.

3. Place this boiling tube into a test tube rack. Ensure you have the bung and delivery tube ready.
4. Bubble gas into 10ml of Limewater

Observation:
The limewater started to bubble a little and the limewater became cloudy. because CO2 is present. 

Is public art a waste of time and money?

In English, we had to write the pros and cons if public art is a waste of time and money here is what I did.

Metal and Oxygen

Making a Metal Oxide

Aim:

To make a metal oxide and observe the difference in properties of the product compared to other reactants. 

Observation:

Before the result, the magnesium was a metallic luster, when we had burned it in the Bunsen burner it became a bright white light. Before the reaction on copper, it was also a metallic luster, but after we burned it became black. Before we heated the copper it was a bronze color, and after we burned it became black.

Equations:

Magnesium + Oxygen = Magnesium Oxide

Copper + Oxygen = Copper Oxide

Iron + Oxygen = Iron oxide  

I Wonder?

I Wonder How Tall Is The Burj Khalifa?

The Burj Khalifa is 830m till the tip. It is the tallest building in the world, it is a skyscraper in Dubai. It was originally called the Burj Dubai. There are 163 floors, and it was made on 6 January 2004. The concrete used to construct the Burj Khalifa would equal the weight of 100,000 elephants. 

Metal and Acids

Testing For Hydrogen Gas

 Aim: To show that hydrogen gas is produced when a metal reacts with acid

Equipment: A test tube, A boiling tube, Bunsen Burner, wooden splint, a bottle of acid or lab partner, a piece of metal, safety glasses

Method: 

1. Light your Bunsen Burner

2. Add your sample of metal to your test tube. Add 2ml of acid

3. Carefully invert the boiling tube above the test tube containing the metal and acid

4. Hold the test tubes together for a few minutes, allowing time for the inverted boiling tube to fill with gas

5. When you think the tube is full, your lab partner should light a wooden splint

6. Carefully, but quickly, tilt the boiling tube full of gas upwards and insert the burning splint into the mouth of the test tube. 

Observation:
It will make a loud popping sound.

Paleolithic

Is gaming is making too many young people unhealthy?

I don't think that gaming is making young people unhealthy. In pairs, we have discussed the pros and cons of that topic. Here is what we did.

Interviews

Are You Addicted To Your Phone?

An investigation has shown that most teenagers use their phone a lot. We questioned 3 people to if they were addicted to their phone. We interviewed a variety of different people. During the videos. each person spoke about if they are they are addicted to their phone, and how long they were on their phone. Majority confessed to being addicted to their phone. Based on the investigation we found out that being addicted to your phone was familiar. We also examined that 3 out of 5 people wouldn't last without their device. Here is one video we made. 

Is Technology Good at School?

In English we have been discussing in pairs if technology is good in school. In pairs we have discussed the pros and cons on having technology in school. You can find it Here!

Making Salts

Making Salts

Aim: To produce sodium chloride salt by carrying out a neutralization reaction.

Method: 

1. Use the measuring cylinder to measure 10ml of HCI and pour it into your 50ml beaker. Add dilute NaOH a few drops at a time while stirring with a glass rod.

2. Every 10-15 drops stop adding the NaOH and use the glass stirring rod to transfer a drop of the solution to a spotting tile. Test its ph using Universal indicator

3. Keep adding NaOH and testing the solution by repeating step 2. As you get closer to neutral you may need to test the solution after every drop.

4. Pour the neutral solution into an evaporating basin and evaporate the water out of the solution.  

Testing pH

Testing pH

Aim: To test the pH of a range of household chemicals.

Equipment: A variety of household chemicals, spotting tile, red litmus paper, blue litmus paper, Universal indicator solution, and safety glasses.

Method:

1. Add a few drops of each chemical to a spot on your spotting tile. If a substance is solid or powdered you will need to mix it with drops of water before testing it.

2. Test the chemicals with litmus paper. 

3. Test each chemical with a few drops of Universal indicator

Result:

Chemical being tested	Colour in blue litmus	Colour in red litmus	Colour in Universal indicator
Dettol	Red	Red	Orange
Morning fresh	Blue	Blue	Green
Jif	Blue	Blue	Green
Harpic	Green	Red	Red
Pledge	Blue	Red	Green

Conclusion:

Chemical being tested	Acid or Base	Evidence from the investigation
Dettol	Acid	It is acidic because it went from blue to red
Morning fresh	Base	It is a base because it stayed the same color
Jif	Base	It is a base because it stayed the same color
Harpic	Base	It is a base because it stayed the same color
Pledge	Acid	It is acidic because it went from blue to red

Neutralisation

Neutralisation

Aim: To observe a neutralisation reaction

Equipment: A test tube, test tube rack, 1 mol L-1 NA2CO3 (Sodium carbonate), 1 mol L-1 HCI (hydrochloric acid), dropper or dropper bottle, Universal indicator solution

Method: 

1. Add approximately 1-2ml of NA2CO3 and place the test tube into the test tube rack. Add 3-5 drops of Universal indicator solution.

2. Using a dropper bottle, add HCI drop by drop. Be careful because adding even a small amount of extra acid can mean you'll miss the neutralization point. 

Observation:
The only change that does produce something different during the neutralization is the reaction between hydrogen ions and hydroxide ions, which produces water molecules. This is the ionic equation that represents the neutralization reaction between an acid and an alkali. When we did it started off at a ph of 0 but when we added sodium carbonate it went to a ph of 12-14. 

Is Space Exploration a Waste of Time and Money?

Is Space Exploration a Waste of Time and Money?

I'm not sure that space exploration is a waste of time and money. Because as people are saying that we are ruining Earth and that we need to make it better, we could explore space and find a place where we can stay and try to keep that planet better. But we could also use the money and time to make Earth a better place.

I think that we should find about other planets. So that we could try and live there or find other living things. We could also find another planet like Earth, but that is maintained better than the one we live on now. Some people say that Earth is going to die, because of the way that we're treating it, but if we find another planet that we could live on we could try and sustain that one, and we could move there. 

I also think that if we use the money on Earth we could try and make it stay alive for a longer period of time. If we used all of that money on Earth we could make it a better place and then we wouldn't have to move. A lot of people say the Earth is going to die but use that money and make sure that Earth remains greater. 

How Technology Changed Overtime

How Technology Changed Overtime

The technology is when the application of scientific knowledge for practical purposes, especially in industry. Technology helps us in life to make it easier. For example pencils, pencils use to be the feather thing that you had to dip in ink to write but today pencils they just have led to it. They have made it like that so it's easier to write with a pencil. They have also changed the phone to make it easier and better to use. My slide is about how things have changed over the years. You can find my slides here.