This file is a compilation of eight word work sets related to science. The topics addressed include Matter, Earth's Systems, Motion, Energy, Earth's Place in the Universe, Plants, Ecosystems, and Engineering. All printables in the unit are extracted from my more extensive Spelling & Vocabulary Units on the same subjects. The materials work well with Daily 5 classrooms, as well as any other spelling and vocabulary format. I use these materials in Language Arts classes as well as my science classes. Leveled spelling and vocabulary quizzes are included, as well as ideas for independent word work and spelling practice. Directions for accessing online activities using these lists are included in the file. Unit Review Tests are also included .The preview shows everything available in the download.