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Firstly I'd like to explain that although the title of the video suggests so, I haven't actually put my Dad in an air cannon, or done anything like it for that matter. Now, Although I was told to write this section last week, I chose to ignore that and um, not do it. As I am supposed to write this, I shall do it now.
So, Uh...
TERM FOUR WEEK ONE:
Uh I made a 'catapult' from popsicle sticks. Note I haven't actually completed the 'catapult' part.
Did so much work, um at least I wasn't playing hangman.
TERM FOUR WEEK TWO
Um just so everyone is aware, we sorted through a 'mystery' cupboard in D3. And that's about it. I swear they're just using us for free labour.
TERM FOUR WEEK ???
HI uh i don't know what week it is but last week we had no science buskers and this week is the last week.
TO EVERYONE EXCEPT PADDY,
IF YOU DON'T COME TO BUSKERS ON THURSDAY,
I WILL FIND YOU,
AND I WILL KILL YOU.
oh and by the way, BEN and WINTER will have to be replaced because they are leaving (sadly)
But all new recruits have to be approved by all current buskers and Mr Gilbert and Mrs Quaid.
Also WHEN ARE OUR LAB COATS BEING PRINTED? And for the record YOU OWE ME TWO STARS.
SOOOOOOOO
2018
TERM ONE WK 6
Yo yo, new year, new buskers. Uh so that means extra people. ANYWAY, the new labs are great, Natty set pipetts on fire and Paddy made a giant mess. Sam blew stuff up, Emily made pretty colours that stained the bench and Isabelle and Rayna made sick fiery beats again. SOoo otherwise a great session.
For the record, i made a better spray fire thingy mixture than Paddy.
Elephant toothpaste ideas
Small funnel glued on top of the bottle.
If we did a giant elephants toothpaste in the bertha bottle.
Bertha rocket
Rocket car
Hydrogen ballon:
sodium hyrdroxide 0.1mol
Aluminium foil, A4 sheet screwed in a lose ball.
Volumetric flask (large)
Today Natty, Sam, Alice and Paddy did some experiments on elephants toothpaste. Mrs quaid wanted to see if the 10% hydrogen peroxide could be used in the experiment instead of 35%. We used 20ml of 10% hydrogen peroxide and 5ml of potassium iodide and 1ml of dishwashing liquid.
Paddy diluted the dish washing liquid. Paddy found out that diluting the dish washing liquid with water make the reaction slower and not very stable.
Sam changed the amount of dishwashing liquid. Sam found out that the more dishwashing liquid you add the slower the reaction gets and you need to get the ratio right. He found that 1ml of dishwashing liquid works best with the 20-5 ratio.
Natty changed the amount of hydrogen peroxide. Natty found out that by adding more or less hydrogen peroxide you are changing the ratio of hydrogen peroxide to potassium iodide so his experiments were sort of doing the same thing as Alice. He found out that adding less hydrogen peroxide improved the experiment and the best ratio was 1-1.
Alice changed the amount of potassium iodide. Alice found out that adding more potassium iodide improved the experiment and made the reaction faster and more vigorous. But you would need to add more dish washing liquid to give it more structure because it becomes weak and just pools out of the container instead of spraying..
Altogether we found out that the 10% is a much slower and more boring reaction and we would need to make severe changes to the formula to make it show worthy.
So this week I worked with natty on the buskers roadshow:
HOT STUFF
HOT STUFF
Hot stuff assuming we are in the science labs:
Intro- Natty
Flaming Colours-Paddy and
Elephants toothpaste-Natty and Emily
Hydrogen balloon-Alice
Acetylene Gas- Sam
Big Bertha- Alice and Rayna
Zinc and Sulfur: Rayna and Mickey
Rubens Tube: Isabell
Outro- Natty
*plays rubens tube as people leave*
Sideshows:
Ph scale- briar
magic blue water thingy- Emily and Jorja
Sugar Dragons-
Bertha notes:
Bertha notes:
Basically you put a small amount of methylated spirits in the bottle. Then rotate it to spread it evenly around the edges. This makes sure there is enough air for the ethanol to ignite cleanly. The blue flame that is created by ignition shows that it was complete combustion whereas if it was yellow it would have been incomplete combustion. There is a small amount of water left after the reaction because the complete combustion creates carbon dioxide and water. This can be proven with a balanced chemical equation.
stuff to say:
Creating a complete combustion using ethanol as the fuel
Mixing it so the ethanol creates a mixture of air and fuel so that it creates vapors with the oxegen which allows me to light it.
When I light it it produces a flame, you can see a blue flame which means a complete combustion.
There is a little bit of water in the bottle which proves that water is a product of a complete combustion allong with carbon dioxide.
So thats all very well but we can do it much much bigger.
This requires much more meths, and it once again gets mixed around to create the air and meths vapor.
RANDOM NOTES:
Complete combustion
Blue flame means complete combustion
Yellow flame means incomplete combustion
Carbon dioxide and water
Can be proven with a balanced chemical equation
Hydrogen Balloon Notes:
Hydrogen Balloon Notes:
Metal reacts with the acid to create a salt and a gas.
Incomplete combustion...
NOTE: somehow bens bertha is a lot more powerful I think we need a new bottle although he is using ethanol not meths.
Flaming colours:
Flaming colours:
Copper chloride, copper sulfide, barium chloride, potassium chloride, strontium chloride Science behind it: the meths heat up the chemicals and the electron gain heat energy so they move faster and then when they cool down they emit light and the difference between the highest temperature and the lowest temperature it reaches determines the colour of the light.
TERM 3 WEEK 4
Well its another week...
The seniors were away so it was just Mrs Quaid and I (and jacob and rohil doing other things) and we did some playing around.
Flaming colours. In a crucible (little porcelain?dish for heating) mix the salt with meths and line the sides/edges of the crucible with it. Then fill the crucible a little less than a third with meths and set on fire. It looks cool and the colours show very well. This should be how we do flaming colours.
As for Sams experiment, acetylene gas, we tried adding a copper chloride and meths mixture to the inside of the neck and when you set it on fire it goes green and continues burning until all the gas is used up. WE should have videoed it.
Copy of IMG_0434.MOVAlso, in a petri dish, mix a spatula of a salt with (a lot) methylated spirits and soak a long piece of string in it. Us test tube holders to clamp both ends of the string and hold out and light on fire. (SEE VIDEO) Much fun in dipping parts of the string with different salts to make different colours.
20180821_164440.mp420180821_165455.mp420180821_171050.mp420180821_165630.mp4Term 4 Week 1:
New show?
Hot stuff is mostly Chemistry
Flaming colours (Eleanor thought we could expand on it)
COLOURS?
Biology - Where would you see colours
Physics- What are colours and how does light refract so we see colours?
Chemistry- Paints and stuff. Lead white?
Burning Stuff with Magnifying Glass.
Working with lenses such as concave and convex, we can intensify the energy from the sun to burn paper. I worked with James to burn paper, with a magnifying glass and a giant mirror (courtesy of Mr Gilbert)
A convex lense is thicker in the middle and thinner at the edges. The shape of the convex lense makes the parallel rays of sunlight refract so they converge or come together at a point. As the rays converge, the concentration of the sunlight at that point increases, thus producing heat.
This heat starts fire which eventually causes the paper (or bench seat) to burn.
Need to research how the mirror worked and the painting I did with Natty, paint made from ash or bark and vegetable oil, with some kind of uh alcohol.
Note: I am struggling to use the new google sites.
Top - Ash paint made with vegetable oil
Bottom - Bark paint made with vegetable oil
Peppers Ghost is an illusion that has been used since the 16th century. It was used to create 'Ghosts' to scare/shock audiences, and can be used in front of either a live audience or on film.
This is still used in theme parks and haunted houses, Disney world uses it in their haunted house.
The Buskers were tasked to recreate this illusion in small scale, with varying results. Many different methods were used. This is still work in progress, but the aim is to eventually create a life size model for open night next year.
I worked with Paddy, with some success, but although Paddy wasn't the best lab partner we completed our illusion, which I forgot to take a good picture of, and it turned out pretty good. The 'Ghost' was visible, and we tried using both glass, and clear plastic, but the plastic made the image warped so it wasn't as good as the glass. The picture on the right shows an aerial view of our peppers ghost illusion.
I also did another batch of paint with ash, except using linseed oil as the binding agent instead of vegetable oil. This seemed to have similar results as the vegetable oil, where the oil soaked into the paper and made it soggy around the edges. I would like to try it on a canvas.
Term 4 week 2.
Oh look I am actually going to write in here 2 weeks in a row. I took a bunch of photos today, loaded them all onto the google drive. If anyone actually reads this and need photos they will be on the Science Buskers Academy (S.B.A) team drive. Or in the gallery of this website.
To start with I was attempting to make a peppers ghost illusion in an empty fish tank with Paddy but I moved on because it was too much work and we did not have enough glass create the illusion. I then moved on and tested the paint I made last week ( the linseed oil one), and it seemed to still be useable, except it was a little grainy/lumpy and it didn't feel as smooth as it did originally. I tried out making more paint with vegetable oil and bark but for some reason is was super lumpy and not as good as the original.
These are pictures of the tests I did for the paint, although they were taken before the paint had time to 'dry' so the stains from the oil soaking into the paper are not visible yet. There was a mysterious beaker of chlorophyll so I mixed it with the black which made an interesting watery colour. I am mostly interested to see what the effects the oil has on the paper.
I was meant to do work here but i procrastinated. LOL. Uh I made some more paints which I need photos of. Will write some stuff tomorrow. Oh well.
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