4 The Planets Worksheets with keys. Crossword puzzle, word search, matching pairs puzzle and a vocabulary study guide sheet. All worksheets also available individually. 25 terms on planet features and characteristics and other celestial bodies in our solar system such as meteors, comets and asteroids. Good companion to a chapter on the solar system or our family of planets. Good review for a quiz. Applicable to Astronomy and Earth Sciences standards. By Maura Bostwick Neill.