A complete leveled textbook and workbook for Grade 5 science, with 44 lessons in 6 units: Properties of Matter; Ecosystems and Energy; Earth's Systems; Earth and Space; Forces and Motion; Engineering Design. Every lesson teaches the skill with a worked example, then gives practice at three levels: Take Off (with hints), Glide (on your own) and Soar (challenge). Extend and Challenge tasks apply each skill to real problems and push deeper thinking. Each lesson is labeled with the standard it practices (Next Generation Science Standards (NGSS)). The complete answer key is included at the back of the book. Full-color coil-bound book that lies flat for writing, 8.5 x 11 in, 248 pages.