Across
- 8. Careful act of noticing something.
- 10. Instrument used to find direction.
- 12. Detailed and carefully developed.
- 13. The ability to understand another person's feelings.
- 14. Study of human history through remains.
- 17. Two-wheeled vehicle powered by pedals.
- 19. The quality of being trusted or believed.
- 21. To reach a conclusion using evidence and reasoning.
Down
- 1. Something difficult to explain or understand.
- 2. Object that attracts certain metals.
- 3. Study of living things.
- 4. Sweet treat made from cocoa.
- 5. A difficult choice between two or more alternatives.
- 6. Layer of gases surrounding Earth.
- 7. A difference between things that are expected to be the same.
- 9. Something mysterious or difficult to understand.
- 11. Picture made from many small pieces.
- 15. Gas needed for human respiration.
- 16. Curved path of an object around another object.
- 18. Ability to face difficulty without giving up.
- 20. Existing or popular for only a short time.