Science Fair Vocabulary word search, scramble and crossword puzzle

I made this science fair vocabulary puzzle set for my 4th graders during our science fair unit. The kids were excited to do projects but had no idea what words like hypothesis, data, or conclusion meant when we talked about the scientific method. They kept asking questions like "What's a variable?" and "Do I have to do a presentation?" So I put together a word search, a word scramble, and a crossword using words like science fair, project, hypothesis, experiment, variable, data, conclusion, presentation, display, and model . I also made sure to include a few like "research" and "question" because they're the foundation of every project . Nothing fancy — just puzzles to help the vocabulary finally stick.

The PDF is four pages. Three puzzles plus one answer key page. The word search works well for quiet time after recess, and the scramble gets them talking because they argue about the spelling of "hypothesis" or whether the conclusion comes at the beginning or the end . The crossword I use for partners or as a review after we've worked through the scientific method together . I added a couple simple beaker, clipboard, and magnifying glass drawings but nothing too busy.

Works for 4th through 6th grade. Print and go. Sometimes I have early finishers pick one word from the puzzles and write a sentence about their own science fair idea on the back. The kids actually ask for these now.