Across
- 3. Digging a tunnel from both sides and meeting in the middle!
- 7. an important Roman road that linked Rome to southern Italy
- 9. a wedge-shaped or tapered stones used to construct an arch
- 12. Roman bridge that used the arch to distribute the bridge's weight and is still standing today!
- 13. heating the rock with fire, and then suddenly cooling it with cold water so that it would crack
Down
- 1. weapon resembling a crossbow, used in hurling missiles or large arrows
- 2. A roof shaped like a half-circle or hemisphere
- 4. the application of scientific knowledge for practical purposes
- 5. erosive strip-mining using the release of massive volumes of water down a slope
- 6. A device that uses running water to grind grain; A Roman Invention!
- 8. A structure that carries water over long distances
- 10. building material made by mixing small stones and sand with limestone, clay, and water - a Roman Invention!
- 11. devices used to hurl stones a great distance