Across
- 1. Geometry
- 6. Thermometer
- 8. Millimeter
- 11. Thermos
- 12. Mythology
- 13. Kilometer
- 14. Telescope
- 16. Geology
- 17. Geode
Down
- 1. Geothermal
- 2. Perimeter
- 3. thermal
- 4. stethoscope
- 5. Thermostat
- 7. Periscope
- 8. Microscope
- 9. Barometer
- 10. Etymology
- 15. Ecologe