How are soap bubbles formed

Posted: Tue, Dec 06 2011, 8:26 pm Post subject: how are soap bubbles formed

how are soap bubbles formed?

anyone know?

Moderator Joined: Jun 05 2011 Posts: 3377

http://www.ehow.com/how-does_5004870_soap-bubble-form.html

Looks like a fun family discussion!! Especially if you do some experimenting too!
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Diamond Member Joined: Jun 29 2011 Posts: 3037

Here are some links.

http://www.google.com/#hl=en&a.....mp;bih=691

Here are some kits for making then with children from Edmund Scientific, a good source for children:

http://www.scientificsonline.com/catalogsearch/result/?q=soap+bubble

Posted: Tue, Dec 06 2011, 9:26 pm Post subject: re: how are soap bubbles formed

can you summarize in a few words please?

Moderator Joined: Jun 05 2011 Posts: 3377

I tried, but my brain is too fuzzy.

Diamond Member Joined: Jun 29 2011 Posts: 3037

Soap makes a film. That means: it sticks together like a cloth fabric. When a little air gets into some soap, it pushes the soap film outward, the same amount in all directions, making a sphere.

As the soap film has very little weight, the bubble is almost as light as air.

When the bubble floats around, it can encounter air which is warmer. This warmth makes the air inside the bubble expand.

This expanding size stretches the soap film. The bubble breaks open because the strength of the soap film is not enough to stay a film when stretched that much.

More,

http://en.wikipedia.org/wiki/Soap_bubble