Matching Pairs Chapter 5 VocabularyOnline version Space 3rd Grade Science by Lisa Hibbeler 1 Planet 2 Globe 3 Revolution 4 Sun 5 Star 6 Orbit 7 Moon Phase 8 Light-Year 9 Shadow 10 Rotation 11 Axis the path an object takes as it revolves around the sun one complete trip around the sun an imaginary line around which Earth spins a dark area that forms when an object blocks the light that hits it a large, ball-shaped body that revolves, or travels around, the sun the shape the moon seems to have at a given time a giant ball of hot, glowing gases that release energy the distance light travels in one year the closest star to Earth a model of Earth one complete spin on an axis