Across
- 3. idea; rule; scientific concept
- 8. appreciation; identification; ID; detection
- 9. to defy; a contest; competition
- 11. to enlist; to enroll; to invite
- 12. scientist
- 14. knowing or realizing something
- 16. to disobey; to rebel
Down
- 1. not sure; unclear
- 2. powerful person
- 4. loud; extremely noisy
- 5. teacher; supporter
- 6. important; significant; impressive
- 7. mountain; opening in Earth’s crust
- 10. learner
- 13. something resulting from the past; relic
- 14. jeopardy; risky
- 15. reach; achieve; accomplish