What is the difference between homonyms and homophones. I found a website that gives direct answers @ icteachers.Co.UK.
Homonyms Vs. Homophones
They are often confused. However, once you get to play around with them they are quite easy. Here are their definitions:

Homophones are words that sound the same but are spelled differently.
Homonyms are also words that sound the same but which are spelled the same. However they have different meanings.
Let’s look at homophones:
Sea Water
See Using your eyes
Right Opposite of left
Write To put pen to paper
There Place/location
Their Belonging to someone
Steel Made from iron
Steal Take from someone
One reason for looking at homophones is because they sometimes cause confusion.
This is often true with there and their:
There is a place or a location.
While their is something that belongs to someone.
Look at the following sentences and see if you know which one to use.
The boys had left (there/their) bikes over (there/their) by the bike shed.
The mother pointed to the bags on the floor and asked “Who has left (there/their) bags (there/their)?”
Answers
The boys’ had left their bikes over there by the bike shed.
The mother pointed to the bags on the floor and asked. “Who has left their bags there?”
Remember that homonyms are words that sound and are spelled the same, but have different meanings.Here are some examples:
club somewhere to dance
club large, heavy object that people get hit with
fine money you owe for bring things back late
fine feeling okay
rock a type of music
rock made of stone
What is the difference between a homophone and a homonym then?
Answer
Homophones SOUND the SAME, but are spelled differently.
Homonyms SOUND the SAME, are SPELLED the SAME, but have different meanings.
Here are some homophones worksheets to help you remember the difference:
Homphone worksheets