JCE Software Chemistry Comes Alive!
Hydrogen Alone (no voice-over)

Hydrogen-filled soap bubbles are ignited producing small explosions (no voiceover, just sound of explosions).

  Click a thumbnail picture below to view a larger version. View movie.
View Movie
 

Discussion
This version of the movie has the same video, but the audio consists of the sound of the experiment only, without the voice-over. Thus it should be easier to hear the different sound levels of the explosions in the three videos.