|First Appearance||The Magic School Bus at the Waterworks (1986)|
|Personality||Mute, friendly, helpful, loyal|
|Family|| Valerie Frizzle (former owner)|
Fiona Frizzle (current owner)
- She talks in three CD-ROMs, despite being unable to talk in the series.
- She is the most seen pet.
- In "In a Pickle", her name is mentioned to be "The Honourable Liz Ard".
- Also in "In a Pickle", her eyes are blue.
- In "Taking Flight", "Cold Feet" and "Spins a Web", the class refers to her as a female.
- She was the main focus of the episode "Cold Feet".
- She is shown to know how to operate the bus' ignition key in "Revving Up".
- She would usually appear during the fictional call-in segment.
- She has horns, despite being a female Jackson's Chameleon, which do not have horns.
- She likes to eat bugs of any kind, but when she's shrunk along with the rest of the class, she develops a fear of insects.
- She is seen in every "Producer Says" segment in the original series.
- Liz makes a weird face in Gets Swamped
- She was the first character to appear onscreen in the series.