Spelling word lists for child aged 10?

[Lorna]

My son has recently finished Spelling Workout D. He got on very well with it but we are unable to get Spelling Workout E for just now. I am looking for some word lists or a online printable spelling programme to tide him over until we get Spelling Workout E.
He learns words very quickly and thoroughly.

[Nikita]

I have used the spelling lists from Katy ISD, found here:

Katy ISD Spelling lists (http://www.katyisd.org/curriculum/curriculum/spelling/main.htm)

They have lists up to grade 5 and most weeks seem to follow a single spelling rule.

There are also free spelling worksheets at Sitton Spelling (http://www.sittonspelling.com/teaching/activities_current.html).

Nikita