This document defines key terms related to forces and motion, including force, wind, magnets, gravity, and motion. It explains that force is a push or pull that can make something move, wind is moving air, magnets are pieces of iron that attract other iron objects, gravity is the force pulling things toward Earth's center, and motion is the act of moving. The document concludes by asking the reader to identify which of the defined terms complete several sentences about forces and motion examples.