Across
- 3. to say something is true, but cannot prove it
- 5. to feel certain that something is ture
- 7. a period of 100 years
- 9. a living creature from outer space
- 12. not in a room, building or container but on or to the outside of it
- 14. a statement where one tries to convince others that he is correct
- 15. a living thing
Down
- 1. not using time and resources in the best way
- 2. locate something to find the exact position
- 4. a very large group of stars and planets
- 6. the outside limit of an object
- 8. all of space, the stars and planets
- 10. to be real; to be present in a place or situation
- 11. used to introduce some new information (adverb)
- 13. a mark, an object or sign that shows something existed or was present