Across
- 2. to study of space
- 6. all of the objects in space
- 8. a unit for measuring how warm something is
- 9. the condition of being serious
- 10. an object that makes things seem closer
Down
- 1. the distance through the center of a circle
- 3. to think about something
- 4. to look at something for a long time
- 5. in addition to
- 7. a hole found at the mouth of a volcano