The word watched only has one syllable so it is not syllabicated.
Earnest has two syllables: ear-nest.
To syllabicate the word "blends," we can divide it as "blends" /blɛnds/. The word has only one syllable, as the "bl" consonant blend and the "ends" vowel sound all make up one sound unit.
The word aerial has three syllables like so: aer-i-al.
The word fruit has one syllable. This means the whole word is the syllable and so it can't be divided into syllables.
quench: quench
res·i·dent
unnecessary
but ter
ren.dez.vous
preach-ed.
chi-lly
Fin-e
am-nes-ty
Fin-e
an-i-mal
The word, history, is syllabicated HIS-TOR-Y