Across
- 4. Invented an improved telescope to observe and describe things in the solar system
- 6. The heat transfer with a gas or liquid
- 7. Earth going around the sun
- 11. Water vaporizing into a gas
- 12. Discovered that there is universe beyond the Milky Way
- 13. Created geology
- 14. Discovered plate tectonics
Down
- 1. The measurement east or west
- 2. Elevation above sea level
- 3. The study of rocks
- 5. The tool to measure air pressure
- 7. The emission of energy as electromagnetic waves
- 8. Plenty supply of something
- 9. The most solid layer of the Earth
- 10. Discovered that the sun is in the center of the universe