This file is a compilation of eight Spelling and Vocabulary Units related to science. The topics addressed include Matter, Earth's Systems, Motion, Energy, Earth's Place in the Universe, Plants, Ecosystems, and Engineering. 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. These are content-based vocabulary and spelling units. Students will double their exposure to key terms related to Science, while improving their spelling (with challenging words) and word knowledge. The units include leveled assignments and tests to challenge your students at their own level of learning. Lessons and practice can also be enhanced by accessing online resources, quizzes, and activities using these specific unit lists. The directions for online access are included in the file. There are also cumulative assessments in the bundle. The preview gives you a full picture of the unit materials in this packet.