Required materials: sugar, glue, hand sanitizer, water.

Tool: stirring rod

Operating steps:

1, prepare proper amount of sugar, glue, hand sanitizer and water.

2. First, add a proper amount of water to the cup and pour in a little sugar.

3. Add liquid glue and proper amount of hand sanitizer in turn.

4. Stir all the materials in the cup evenly with tools.

5. When stirring, you can see that there are a lot of foam channels in the cup, and the bubble water is made.

Extended data:

Bubbles are formed by the surface tension of water.

The mutual attraction between water molecules on the water surface is stronger than that between water molecules and air. These water molecules seem to stick together. However, if the water molecules stick together excessively, bubbles are not easy to form. Soap "breaks" the surface tension of water, which is the best tension needed to blow bubbles.

The disappearance of bubbles:

When water evaporates, bubbles disappear, so glycerol can be added to the bubbles to form a weak chemical bond with water, thus slowing down the evaporation rate of water.

When light passes through the film of soap bubbles, the top and bottom of the film will be refracted, and the soap film can contain about 150 different layers at most. See the messy TINT is caused by the imbalance of the film. The thickest film reflects red light, the thinnest reflects purple light and the middle reflects colorful light.

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