Unschooling with a conch shell

Seneca had an awesome unschooling moment today.  She was holding a shell from the beach when she asked me what kind of shell it was.  We then went to google images for "types of shells." Seneca typed in the word shell as we sounded it out.  She learned that s-h makes the "sh" sound.  We compared Seneca's shell to pictures of other shells and determined that it was a conch shell.  I then read briefly about conch shells on wikipedia.
  Seneca and I went over to her craft table and got out her lesson book.  She worked on phonics skills as I guided her to sound out and write the words conch shell.  She still gets a bit confused on the short a versus the short e sounds.  We also worked on writing lowercase n and lowercase h.