Across
- 3. to stop light from passing through
- 4. the area beyond Earth
- 7. a dark area where light is blocked
- 8. energy from the Sun that lets us see
- 11. to line up in a straight line
- 12. a way to show how something works
- 14. what we see above us during the day and night
- 15. when the Sun is visible
- 16. when it is dark and the Moon can be seen
- 17. the path an object takes around another object
Down
- 1. a large object that orbits a star
- 2. when light is blocked in space
- 5. the planet we live on
- 6. a natural satellite that orbits Earth
- 7. when something gives off or reflects light
- 9. when there is little or no light
- 10. an eclipse where the Sun is blocked
- 13. an eclipse where the Moon is darkened
- 14. a huge ball of hot gas that gives off light