Root Lab

• 4th–5th grade
• Ages 9–11
• Free, no sign-up

Tele means far. Scope means look at. So a telescope lets you look at things far away! In Root Lab, your child learns 20 common Greek and Latin roots, then mixes word parts to figure out the meanings of words like biology, autograph and interrupt.

▶ Play

About the game

How to play

1. Look in the flask. What does the root mean?
2. Mix two parts. Tele + scope = telescope.
3. Pick the meaning. The lab explains each answer.
4. Become a lab master. Three stars for first-try answers.

For parents: what Root Lab practices

Root Lab teaches Greek and Latin roots, one of the strongest tools for figuring out new science and academic words. It pairs with:

• Greek and Latin roots
• Root words
• Greek and Latin roots worksheets

Common Core: L.4.4b (use common Greek and Latin affixes and roots as clues to the meaning of a word), L.5.4b.

Getting the most out of it

• Look for roots in science words: biology, geology, microscope.
• Learn one root a day and find three words with it.
• When stuck on a word, split it into parts.

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

• Word Part FactoryBuild words from prefixes, suffixes and roots.3rd–5th grade
• Idiom IslandFigure out what idioms and sayings really mean.3rd–5th grade
• Fact or Opinion?Sort statements into fact or opinion against the clock.2nd–4th grade

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Last reviewed: November 11, 2026

Questions parents ask