Free Ecosystem Word Search (Printable PDF + Answer Key)

Download and print this free ecosystem word search — 15 hidden words covering everything from a PREDATOR stalking its PREY to the DECOMPOSER breaking it all back down. It’s a free PDF with the answer key included, sized for standard printer paper and ready for life-science unit starters, food-web lessons, or a review sheet before an ecosystems test.

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Answer key includedFree · 2 pages · key on page 2

15hidden words

Gr 5+suggested grade

2pages: puzzle + key

FreePDF, no sign-up

The 15 Words in This Puzzle

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Every HABITAT runs on the same rules: a PRODUCER makes energy, a CONSUMER eats it as PREY to a PREDATOR, and a DECOMPOSER finishes the job, all within a COMMUNITY sharing one BIOME like a WETLAND or RAINFOREST. Here’s the full word bank you’ll be hunting for:

About this puzzle

About the Ecosystem word search

The word list is easy-to-medium: PREY, BIOME and NICHE are quick finds, while DECOMPOSER, POPULATION and RAINFOREST take a little more scanning. It works from about grade 5 up, and pairs nicely with a lesson mapping out a FOODCHAIN from PRODUCER to CONSUMER.