Uploaded November 2015 | Updated September 2026, 8 hours ago

---

Jerry loves cookies & milk… but he’s lactose intolerant. An animated music video about body systems and bacteria, part of Science With Tom episode #3.
Write your own “Verse Two”! Instructions: bit.ly/1IMUCYI
Subscribe - bit.ly/1Hf68JW ↓ More info and resources below ↓

Vocals by Tom McFadden and Mr. D (Music Notes Online)
Audio production by @ChaseMooreMusic
Video produced by 3Motion Creative
Animation by Nathan Heigert (www.nathanheigert.com)

Lyrics to “So Many Systems” on RapGenius: genius.com/Science-with-tom-so-many-systems-lyrics

Website (book assemblies, workshops, & live shows): sciencewithtom.com
Facebook - facebook.com/ScienceWithTom
Twitter - twitter.com/ScienceWithTom
Instagram - instagram.com/sciencewithtom