Across
- 2. a possibility of something happening
- 3. evidence or argument establishing or helping to establish a fact or the truth of a statement
- 7. something very important
- 10. progress in science or technology
- 11. a tool used for research
- 13. doing something despite difficulty
- 14. a person who studies the stars and planets
Down
- 1. the action of leading a group of people or an organization
- 4. something that's necessary
- 5. the area or scenery behind the main object
- 6. the envelope of gases surrounding the earth or another planet
- 8. to provide
- 9. all the visible features of an area of countryside or land
- 12. directing one's hopes or ambitions toward becoming a specified type of person