Study guide for the individual subject test in Science for the 2017 - 2018 Catholic Schools Academic Junior High Decathlon based on the book DK Smithsonian Knowledge Encyclopedia Space! by Ben Morgan. Study guide includes vocabulary, review questions, quizzes, crossword puzzles, diagrams, matching worksheet. Two 50-question multiple-choice practice tests and access to Quizlet online classroom included. Answer keys included. Developed by the test writers for the 2017 - 2018 Academic Junior High Decathlon.