There's no mystery about it! One of the most fun and engaging ways for students to practice identifying parts of speech is by coloring a mystery picture!
Following a key, students match a word's part of speech with its representative color, then color squares to reveal a mystery picture. The parts of speech practiced in this picture are nouns, verbs, adjectives, adverbs, pronouns, and conjunctions. Besides printing papers for individual students, the coloring sheet can be projected on a whiteboard for whole group instruction/participation.