Fan Wen:
Once I bought a bottle of coke in the supermarket. When I got home, I found many bubbles in the coke. I don't know why there are many bubbles in it, so I asked my mother. My mother told me that because cola is a carbonated drink, carbonic acid is unstable and easily decomposed into water and carbon dioxide, and the bubbles produced are carbon dioxide gas.
When coke bottles are made, a lot of carbon dioxide is compressed in them. Open the lid, carbon dioxide will evaporate quickly, so you will see a lot of bubbles. After a long time, the carbon dioxide volatilizes almost, so there are no bubbles, but it tastes bad.
Another time, I was downstairs blowing bubbles with my children. Playing, a child asked a question: "Soapy water is white, why are the bubbles blown out colorful?" When I got home, I asked my sister, who told me that soap itself is colorless;
Just like transparent cellophane, sunlight will be reflected to the front and back of the soap film. Sunlight passes through the front, meets the back and immediately reflects back; When the reflected light goes back to the front, it will cause some reflection. Sunlight consists of seven monochromatic lights;
If part of the soap film only cancels out the two reflected red lights, then what you see here is sunlight without red light, which looks like blue-green. In another part, the light of one color is enhanced, which is another color. This is how soap bubbles break down sunlight and present colorful patterns.
Scientific knowledge is everywhere in real life. In the future, I will learn more scientific knowledge and make full use of it in my life.