Science Toolkit...Expansion disks??

[saturna@garcia.efn.org (Kevin Saturna)]

Today, Hurray!, I found a fun toy
And perhaps it will be a useful tool.
But what I am wondering is if there is more
Of this good thing boyee oh boy.

Just before I left Goodwill in disappointment I found a happything.
An unused, boxed all-pieces untouched Broderbund Science Toolkit with 
all parts and manuals and advertisements and etc.

After dinking around with it and watching my GS tell me the temperature 
and light emitting strength of various objects I felt I needed more.  More
toys, more fun, more unprotected Apple II use.

Are there any expansion disks for Broderbund's Science Toolkit?  Did they 
just include the option to load in new modules for the same reason so many
older video games consoles included expansion slots nothing ever slid in to?

If there were expansion disks, can anyone tell me what they were and even
better where to find them besides possibly garage sales.

Thank you oh so much for your kind words and thoughtful thinkery,
---Kevin

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