Question

Noun or verb
he had dips with our chips.
he dips his hand into the the damp sand .
dan's cat did tricks.
dantricks his twin.
the tracks are in the sand .
the cat tracks sand in the house

Answer 1

I'll mark the relevant words (those that can be noun or verb) in each sentence and give the part of speech they are in that sentence.

1) he had dips with our chips.
- dips: noun (plural — food served with chips)
- chips: noun (plural)

2) he dips his hand into the the damp sand.
- dips: verb (3rd-person singular present of "dip")
- hand: noun
- sand: noun

3) dan's cat did tricks.
- did: verb
- tricks: noun (direct object of "did")

4) dantricks his twin.
- If you meant "Dan tricks his twin.": tricks = verb (3rd-person singular of "trick")
- If written as the single word "dantricks": likely a verb here (acting on "his twin"), but it could also be a proper name (noun) if intended as a name like "DanTricks."

5) the tracks are in the sand.
- tracks: noun (plural — subject)

6) the cat tracks sand in the house
- tracks: verb (3rd-person singular of "track")
- sand: noun

If you want, I can convert these into a table or only list the ambiguous words with their POS.