Across
- 1. atoms set
- 6. Fluctuations through matter that produces sounds
- 9. Center of earth's surface
- 11. Solid form of water
- 12. Biggest star near Earth
- 14. Way of acquiring energy used by plants
- 15. Main constituant of air
- 16. Common way to express proportions
- 18. Place where experiments are carried out
- 19. Smallest unit of matter
Down
- 2. From solid to gas
- 3. Genetical code
- 4. Famous physicist
- 5. Science related to space
- 7. Gas coming from a reaction
- 8. Things you do to prove a theory
- 10. Distance made by light in one year
- 13. Theory of evolution
- 14. Constant used in rotation movements
- 17. Force that causes the phenomenon of falling