FLOATING SMOKE Experiment (baking soda & Vinegar chemical reaction)
Channel: Kids Fun Science
Date: 2021-11-04

FLOATING SMOKE Experiment (Baking soda & Vinegar)
Cooler smoke molecules fall instead of rise and escape out the paper tube and creates the smoke waterfall affect. See why

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Chapters
0:00 Kids Fun Science Intro
0:13 What you need
0:49 Step 1 setup
1:10 Step 2 Baking soda & Vinegar
1:25 Light sticky note
1:44 Science behind it
2:20 Floating Smoke Experiment

Special thanks to @Nittygrittyscience on instagram 
https://smart.bio/nittygrittyscience/

What you need
L bracket
Sticky note paper
Lighter/Torch
Glass
Vinegar
Baking soda

Step 1 (Setup)
Take your sticky note and roll it up with the sticky part facing up. Start rolling opposite side of the sticky part. You want to be able to make it small enough to fit into your L bracket. 

Step 2 (Setup) 
Pour baking soda into the glass, then pour some vinegar ontop of the baking soda. This will cause a chemical reaction and makes Carbon Dioxide gas. 

Step 3 
Hold the L bracket above the glass. If you hold the L bracket to low inside the glass the carbon dioxide gas could put out the fire on the sticky note. Now light the top part of the sticky note. 

You will notice the smoke comes out the bottom of the sticky note. This is not normal as you know smoke rises. Like with forrest fires and camp fires. The Science behind why the smoke sinks is the smoke only can come out the bottom of the sticky note and as it goes down the sticky note tube it cools down and becomes heavy and sinks to the bottom. Like in my other experiment Smoke Waterfall https://youtu.be/zTBnOx9IZls But this time we have carbon dioxide gas in the glass so it is floating.

Now when you move the glass back and forth, the smoke looks like its moving around like a liquid. Pretty cool. 

SCIENCE BEHIND IT
Science behind why doesn’t the smoke rise?

When paper burns it breaks down to millions of gases and water vapors. Normally these molecules are heaver then air. The flame excites these molecules making them lighter then air. Which makes the rising smoke you see from a normal fire.

In this experiment all the hot smoke molecules are being trapped into the paper tube and which prevents them from rising.

The trapped smoke molecules are given time to cool off and which releases the energy that allowed them to be lighter then air.

The cooler smoke molecules fall instead of rise and escape out the paper tube and creates the smoke waterfall affect.
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