Word Part Factory
- 3rd–5th grade
- Ages 8–11
- Free, no sign-up
Every order describes a word, like not kind or a tool to see far. Your child picks one part from each conveyor belt to build it: un + kind, tele + scope. Each answer shows the finished word and what its parts mean, so kids learn to take apart long words they meet in their reading.
About the game
| Floors | 5, with 8 orders each |
|---|---|
| Skill | Prefixes, suffixes and Greek and Latin roots |
| Covers | un-, re-, pre-, dis-, mis-, -ful, -less, -er, -ly, -able, -ness, -ment, -ion and 10 roots |
| Sign-up | None. Progress stays on your device |
How to play
- Read the order. It tells you what the word means.
- Pick the first part. Tap one part on the first belt.
- Pick the second part. Tap one part on the second belt. The word appears below.
- Build it. Right words ship out. Wrong ones show the parts the order needed.
For parents: what Word Part Factory practices
Word Part Factory practices using prefixes, suffixes and roots to work out what a word means, one of the most useful vocabulary skills from 3rd grade on. It pairs with:
Common Core: L.3.4b (affixes), L.3.4c (root words), L.4.4b and L.5.4b (Greek and Latin affixes and roots).
Getting the most out of it
- Before building, ask: which part tells you the meaning? Not = un-, again = re-.
- After each floor, think of one more word with the same part, like unlock or unpack.
- Read the word parts in a hard word together when you find one in a book.
Games are best as a reward or a warm-up, not the main lesson. Ten minutes of play after a short lesson works better than an hour of play on its own.
More games
- Fact or Opinion?Sort statements into fact or opinion against the clock.2nd–4th grade
- Idiom IslandFigure out what idioms and sayings really mean.3rd–5th grade
- Synonym and Antonym MatchA memory game of synonyms and opposites.2nd–4th grade
Last reviewed: November 11, 2026
Questions parents ask
What if a wrong combination makes a real word?
Sometimes it does, like careful. It's still wrong for that order because it doesn't match the meaning. The game shows which parts fit.
Which roots are covered?
tele, micro, auto, bio, photo, therm, graph, scope, meter, phone and logy, the roots behind words like telescope and biography.
Is this game free?
Yes. Every game on English1to5 is free, with no ads, no sign-up and no in-game purchases.
Does the game collect any information about my child?
No. There are no accounts. Progress and scores are saved only in your browser on your own device. See our privacy policy.