We were supposed to label every word in these sentences, but some of them were kind of confusing:

Question

The process is a method using heat and cold.

I know that "the" is article adj., "process" is subject, a article adj, "and" is a conjunction , but what is the rest.

He showed scientists the potentiallty of controlling bacteria or germs.

would "of controlling bacteria or germs" be all one prepositional phrase if not what would it be?

I'll get you started.

He = pronoun, subject
showed = verb, past tense main verb
scientists =
the =
potential (no such word as potentiality) =
of = preposition
controlling = gerund
bacteria =
or =
germs =

This website should help:
http://grammar.ccc.commnet.edu/grammar/
Use the menu in Word & Sentence Level to find functions of words.

Let me know what you come up with and I'll give you feedback.

=)

what is gerund. and I didn't say it was potentiality, I said potentiallty.
The end of the word spelled with a l...l...t...y

The word should be "potential" -- no "allty" on it; no such word as "potentiallty"!!

Gerunds:
http://owl.english.purdue.edu/handouts/grammar/g_verbals.html

http://grammar.ccc.commnet.edu/grammar/verbs.htm#gerunds

=)