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