Across
- 2. the force that attracts one object towards the center of another object
- 5. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
- 6. the star that is the main source of light at the center of the solar system
- 9. the nearly circular path a smaller object travels around a larger object
- 10. something we observe to be similar over and over again
- 12. the phase when we only see the illuminated side of the moon
- 13. the study of outer space
- 14. the phase when we only see the dark side of the moon
Down
- 1. the shape of the illuminated part of the moon as it appears from Earth
- 2. the phase when we see more than half of the illuminated side of the moon
- 3. to shine light on an object and make it visible
- 4. the border between light and dark on the moon
- 7. a rocky sphere that travels around a planet
- 8. the phase when we see less than half of the illuminated side of the moon
- 11. the phase when we see half of the illuminated side of the moon
