Frozen bubbles - Classroomchat
Did you know? That you can freeze bubbles?
The Canberra Times Winter Photo Competition
BUBBLE WRAP: Debbie Hartley, of Kambah, snapped this winning photograph of a frozen bubble
on a particularly frosty morning. Photo: Debbie Hartley
Class: 3A & 4A
1. Make your own frozen bubbles. Write a full experimental report. Take photos.
Aim: To find out how to make the best frozen bubbles.
Hypothesis: Using more soap in the mixture makes better frozen bubbles.
Discussion of results: describe your results in words
Error analysis: what do you think you could have done better?
2. Find and write the addresses of at least three other websites with frozen bubble pictures.
3. Find out what is „surface tension“ and „thin films“ use:wikipedia.
Class: 5A & 6A & 7A
Learn about thin films and their uses: http://www.tfp-thinfilms.com/de/Opt-Filter.6.html
More possible sources: http://www.uibk.ac.at/ionen-angewandte-physik/tft/publications.html
Maybe look at: http://oceanthinfilms.com/
Now write a short summary about how „Thin Film Interference“ and how you could
determine the thichness of the film by looking at the wavelength of the reflected light.