This zip file contains 10 custom made crossword puzzles with middle school level science vocabulary terms and a glossary (I highly recommend giving each student a copy of the glossary). This is made with the Washington state standards and definitions, but would be useful in any state. It also includes a glossary which serves as an answer key and word bank. My kids tear through these and it is a great way for kids who finish early to review a broad range of science topics and vocabulary. They are challenging enough to keep them busy, but not so overwhelming that they give up.