How to make Hokey Pokey

EQUIPMENT:
50g of sugar
1/2 tablespoon of water
1 tablespoon of golden syrup
1/2 tablespoon if 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 the sugar 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. Aff bicarbonate of soda and stir!
5. Watch what happens - it should all froth up with bubbles in the pan 
6. Pour out into your tinfoil sheet
7. Allow to cool  

This is what our Hokey Pokey looks like. The sweetness is perfect and the texture is fine. I think we're the only team who got the perfect result. This is the first time we cook something in science, so I'm really happy because I like Science and cooking.

Public art is a waste of time and money.

Drill gauge & F shape with safety

We have been working on Drill gage and F shape for about 14 weeks now. I am glad that I had a chance to finish it because some people didn't have enough time to finish their work.

This is what I have done for the last 14 weeks. Doing this project is not a big deal for me because I've done Metal tech last year so I kind of know how to do it. However, the F shape is a little difficult to do because you have to file it right or else it will not fit. The drill gage is not that hard because all you have to do is drill it and file the edges. 

Equipment:

60x25 ferrous steel

scriber

Engineers blue

Hax saw

File

Ruler

Vernier caliper

Method:

First, you have to get a two 60x20 ferrous steel and then clean both side of the 2 piece until you think it's clean. Second, add engineers blue on one side of the piece, after the engineers blue is dry, get a scriber and mark the right measurement. After you've done that, go ahead get a hax saw and cut the part that you don't need. Once you've finish cutting get a file and clean the edges and make sure the 2 piece can fit together after you did that clean your work and you're done.

Equipment

60x120 ferrous metal

scriber

Engineers blue

Hax saw

File

Ruler

Vernier caliper

Center punch 

Method:

 Get a metal same as the one you use for your F shape. Just like what you did in F shape, you have to clean it and put engineers blue so you can mark your measurements. Go ahead and find the drills you need and drill the holes. After you done drilling, go to the buffing machine to polish your work so you can oil dip it. 

Safety 

Bench Drill - In terms of using a drill you have to wear safety glasses to protect your eyes from bits flying around. You need a partner to help you turn on and off, just in case things go wrong you can turn off the drill.

Buffing machine -  Using the buffing machine, you have to wear a face shield to protect your face just in case your work flies.

Oil Dipping - When oil dipping your work you have to wear an overall suit to protect you from the fire, gloves to protect your hand from heat, and safety glasses to protect your eyes.

  

Stone Age: Paleolithic

This is what Paleolithic people did to live in early days. They didn't eat any dairy or grain, they live as a hunter and gather berry. They developed small blades by chipping sharp slivers off a core and attaching it to a handle and they use this blades for hunting. Paleolithic people live in cave huts and animal skins. Paleolithic people lived about 2.6 million years ago.

Testing Hydrogen Gas

                   Testing the Hydrogen gas

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

EQUIPMENT:
Test tube, boiling tube, Bunsen burner, wooden splint, a bottle of acid, piece of metal, safety glasses

METHOD:
1. Light your bunsen burner
2. Add your sample of metal to your test tube. Add 2 mL of acid
3. Carefully invert the boiling tube above the test tube containing the metal and acid.
4. Hold the test tube together for a few minutes, allowing time for the inverted boiling tube to fill the 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:
We first put in the metal and acid the liquid got really hot in the test tube and one well felt it was ready to have the splint put into it we lit it and put it in the test tube and it made a loud pop noise.

Outline how you could tell a chemical reaction was occurring in the test tube: when we put the splint in the test tube in made a loud pop noise.

Supermarkets should eliminate using plastic bags to help the environment

gaming is making too many people unhealty

Film Writing

Technology is Useful to Increase Student Engagement and Achievement.

Pros and Cons 'Technology is Useful to Increase Student Engagement and Achievement.'

Are you addicted to your phone?

Neutralisation Experiment

   Neutralisation
 A chemical reaction occurs when you mix together an qcid and base.The base cancels out tge effect of the acid. The reaction called a neutralisation reaction because a neutral solution is made if you add just the right amount of acid and base together.

 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 a dropler bottle, Universal indicator solution.

Method:
 1st step - add approximately 1-2 mL of Na2CO3 and place the test tube into the test tube rack. Add 3-5 drops of Universal indicator solution.

2nd step - 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 neutralisation point.

Observation:
Universal indicator turned blue when you put sodium carbonate solution. When you put acid it'll make some bubbles. When you add to much acid the colour changed to yellow, green and red.

Ways technology has changed how we do things

This slide is about how technology has improved from the past and how it is attached to us everywhere, and how it made everything easier




Technology - is a modern tool that we use every day to make things easier and quicker.

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, safety glasses


Method: 
1 step - 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 a few drops of water before testing it.
2 step -  test the chemicals with litmus papers.
3 step -  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
Harpic	red	red	yellow
Easy off BAM	blue	blue	black
Dettol	red	red	yellow
Pledge	blue	red	yellow
Pledge clean & dust	red	red	orange

Conclusion:

 Blue litmus paper turns red under acidic condition and red litmus paper turns blue under basic or alkaline conditions, Neutral litmus paper is purple.