Across
- 3. Almost total darkness
- 4. the imaginary sphere that surrounds the earth
- 6. a motion where Mars appears to wander through the sky
- 8. a lens where light is bent inwards
- 9. Total darkness
Down
- 1. the splitting of light into a spectrum
- 2. second planet from the sun
- 4. groupings of stars that can be seen in the sky. Traditionally used for navigation.
- 5. The appearance of the moon in its 28 day orbit of earth
- 7. day the amount of time it takes for the earth to rotate 360