Across
- 2. Chinese invention commonly used on July 4
- 4. Astronomical telescope
- 6. Represents nothing
- 8. Faster than an airplane
- 9. Monumental structure; royal tomb
- 11. Cuneiform is the earliest form
- 14. Time; one revolution around the sun
- 15. Chinese invention for navigation
- 17. The 'M' in STEAMM
- 19. I, II, III, IV, etc.
- 22. Work can work better
- 23. French invention; "Off with their head!"
- 24. Beam of light
Down
- 1. The 'T' in STEAMM
- 3. Proposed the planets moved elliptically
- 5. Rebirth of Greek/Roman art
- 7. The 'E' in STEAMM
- 10. A system of numbers based on ten
- 12. The revolution of inventions
- 13. The 'A' in STEAMM
- 16. Inca record-keeping
- 18. The earth revolves around the sun
- 20. The 'S' in STEAMM
- 21. The library is full of them