I combined the audio activities into one audio file. I first recorded a script I created using Audacity. I then downloaded an audio file from freesound.org (here) and clipped it to a shorter length. I then combined the 2 files by appending the freesound audio file to the end of my scripted audio. Lastly, I added another piece of scripted text after the freesound audio clip.
This audio clip is an example of something either I may create or have students create as part of the Science 9 Environmental Chemistry Unit, specifically when we debate alternative forms of energy.