Light Relight - Sick Science! #117

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The SICK Science® series was created by Steve Spangler.

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[Mumakuma]

This is the first time I comment on any of your videos, however I've been a subscriber since a long time, but I just wanted to say thank you very much for your great videos! As a parent myself now, I really wish your videos would have existed back when I was a kid so I could do these awesome experiments with my parents.
The greatest things on your videos is that you don't ever talk. It make it look even more "magical" to kids. And I also love your music!
Keep up the good work, and thanks again!

[sickscience]

There is a link in the description, as well as an annotation during the video that will take you to the full experiment. It is completely free and tells you everything you need to know. That's why we include the links:)

[sickscience]

You are on the right track! I will be posting a link to the full experiment later today which will reveal the answer:)

[TwitchyBabies]

Awesome i like how the flame suddenly relights !!!

[sickscience]

I will add a link to the experiment later today:)

[rushita_a]

I love SICK SCIENCE <3
HUGS FROM THE UK

[seesmelltastethink]

A TOOO AWESOME THING is that you read our comments!

[BlahLab]

I love all of these videos, they make me want to do science even though I'm already taking like 3 science courses!

[andypeterson]

I had how this channel always keeps you hanging!

[TEODOR]

baking soda in contact with the vinegar forms carbonic acid and sodium acetate, but the carbonic acid quickly divides into water and carbon dioxide. That makes the following reaction NaHCO3 + CH3CO2H => CO2 + H2O + CH3COONa. The carbon dioxide makes the flame to burn out. In the second reaction which is decomposition of hydrogen peroxide (H2O2) to water and oxygen, so the reaction is following: 2H2O2 = H2O + O2, so the oxygen from the reaction starts the fire on the stick, simple as that!

[aigagror]

I like these mystery substance kinds of videos you should keep doing them

[MrGlennJohnsen]

Guessing the powders you added each made either carbondioxide and oxygen.
The vinager activated the powder (guessing baking powder or baking soda) to make carbondioxide to put out the flame.
The other liquid and powder made the other tube fill up with alot of oxygen which helped the still hot wood to combust into flames again.

[CatfishCameras]

Ok I think I got this,
The two powders were yeast and sodium bicarbonate (baking soda) The vinegar reacts with the baking soda to create co2, which is denser than air and puts it out. The hydrogen peroxide reacts with the yeast to create ethanol, which is, of course, flammable.
Please tell me whether or not I am right!!

[ilovepizzamore]

Yeast and baking soda. I can tell by the reaction.

[TheDropStatus]

Awesome, something that i should try out :D

[sy_ox]

And Sodium Bicarbonate folks is your typical Household "Baking Soda"

[JGAN]

yeast and baking soda. the one with vinager reacts with baking soda creating co2 and the other yeast which react with the hydrogen peroxide. The co2 stops the fire because fire needs oxygen but the hydrogen peroxide and yeast solution creates a reaction that brakes the oxygen from the hydrogen making the flask full of oxygen, so fire can start again since u got the 3 things.

[emiletetrt]

really cool, think it has something to do with the different kinds of gasses in each cylinder.

[onlyKentrop]

The "relighter" is oxygen in the tube. It won't explode, as oxygen isn't actually explosive. What it will do, is burn much fiercer than the lit stick does in normal air.

[jmsalgorithms]

I think the powders are distractors because vinegar stops the fire while the H2O2 is highly flammable