Build an Alien

• 1st–3rd grade
• Ages 6–9
• Free, no sign-up

This is a tall, purple alien with three big eyes. Your child reads the sentence, then builds the alien by picking its size, color, eyes, skin and face. Every adjective in the sentence is a building instruction. In the last level, they look at an alien and choose the sentence that describes it.

▶ Play

About the game

How to play

1. Read the sentence. The adjectives are in purple.
2. Build the alien. Tap a choice in each row. The alien changes as you tap.
3. Check it. Parts that don't match the sentence turn red.
4. Last level. Look at the alien and pick the sentence that fits.

For parents: what Build an Alien practices

Build an Alien teaches what adjectives do: they describe a noun. Kids read for detail and see how adjectives stack up in the right order (a happy tall purple alien). It pairs with:

• Adjectives
• Order of adjectives
• Adjective worksheets

Common Core: L.1.1f (use frequently occurring adjectives), L.2.1e (use adjectives and adverbs), L.4.1d (order adjectives).

Getting the most out of it

• Read the sentence out loud and point to each adjective.
• Ask: which word tells the color? the size?
• Draw your own alien and describe it with three adjectives.

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

• Verb CharadesWatch the action, pick the verb, use it in a sentence.1st–2nd grade
• Comparison ClimbBig, bigger, biggest: climb the ladder.2nd–3rd grade
• Conjunction BridgeJoin ideas with and, but, or, so, because.2nd–4th grade

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Last reviewed: November 11, 2026

Questions parents ask