Vocabulary.com
Latin Root "Sub" Words
This site contains a list of 10 words that contain "sub", a prefix that means "under" or "below", in them. Teachers can digitally assign this list to their students to reinforce the spellings, pronunciations, and meanings of these words.
Quia
Quia: Prefix Skills
Learn prefix skills by taking the quiz using "Matching, Concentration, Flashcards, or Word Search."