My wife and I are often looking for new science demonstrations to do with children. The latest one she found was "bouncing soap bubbles".
For reasons of convenience [laziness?] we actually bought the kit from Steve Spangler.
It is pretty cool.
A couple of interesting scientific questions are:
Why do the gloves help?
The claim is that the grease on your hands makes bursting the bubbles easier.
Why does glycerin make the soap bubbles stronger?
Why does "ageing" the soap solution for 24 hours lead to stronger bubbles?
Journal of Chemical Education is often a source of good ideas and science discussions. Here are two relevant articles.
Clean Chemistry: Entertaining and Educational Activities with Soap Bubbles
Kathryn R. Williams
Soap Films and the Joy of Bubbles
Mary E. Saecker
Subscribe to:
Post Comments (Atom)
From Leo Szilard to the Tasmanian wilderness
Richard Flanagan is an esteemed Australian writer. My son recently gave our family a copy of Flanagan's recent book, Question 7 . It is...
-
Is it something to do with breakdown of the Born-Oppenheimer approximation? In molecular spectroscopy you occasionally hear this term thro... -
If you look on the arXiv and in Nature journals there is a continuing stream of people claiming to observe superconductivity in some new mat...
-
I welcome discussion on this point. I don't think it is as sensitive or as important a topic as the author order on papers. With rega...
Glycerine has humectant properties. This means glycerine absorbs moisture. Then a detailed explanation is given on how glycerine prevent evaporation of moisture in surface of a soap film here in this web site which probably answers the query on glycerine making soap bubbled stronger.
ReplyDeletehttp://soapbubble.dk/english/science/glycerin-in-soap-bubble-mixtures/