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Experimentals: Raiders of the lost Anti-Bubble

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Man holds wire circle with suspended bubble
Experimentals: Raiders of the lost Anti-Bubble

SUBJECTS:  Science

YEARS:  3–4, 5–6


Doctor Ruby and Bunsen Bernie are bubble hunters in search of the mysterious Anti-Bubble.

Before they can enter into the Chamber of the Anti-Bubble, they must pass three challenging bubble tests.

This is part one of a two-part episode.


Things to think about

  1. 1.Where might you see bubbles being formed? How can you make them? How would you describe the shape and colour of bubbles? What else do you know about bubbles?
  2. 2.What do Ruby and Bernie pack? What is their first bubble challenge? Predict what Ruby and Bernie might do to solve it. Why does the loop of thread make a perfect circle? What is the second challenge? What do Ruby and Bernie mix together? What gas does this mixture produce? What happens to the bubble in the jar? Why?
  3. 3.Try the floating bubble challenge. Did you know that carbon dioxide is denser (heavier) than air? How does this affect the bubble as it moves over this gas? How long does your bubble stay floating on the carbon dioxide? Draw a diagram of the bubbles you make. Why do you think bubbles are spherical? (Clue: it has something to do with surface tension.)
  4. 4.Predict how you could make a cube-shaped bubble. Watch part two of this episode to see how Ruby and Bernie solve this third challenge. Check it against your prediction.



Date of broadcast: 6 May 2007


Copyright

Metadata © Australian Broadcasting Corporation and Education Services Australia Ltd 2012 (except where otherwise indicated). Digital content © Australian Broadcasting Corporation (except where otherwise indicated). Video © Australian Broadcasting Corporation (except where otherwise indicated). All images copyright their respective owners. Text © Australian Broadcasting Corporation and Education Services Australia is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0).

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