Across
- 3. Change in form or appearance, not substance
- 4. Process of liquid turning into gas
- 8. Solids where atoms are held by metallic bonds
- 9. Liquid turning into solid
- 10. Solid turning into liquid
- 13. Ionized gas with charged particles
- 14. Chemical reaction involving oxygen
- 15. Tiny units of matter
- 16. Gives trees and other plants a boost in drawing nutrient-rich water
- 18. Change that alters the substance's composition
- 20. Solid turning directly into gas
- 22. Solids made of ions held together by ionic bonds
- 23. State of matter with fixed shape
- 25. Tension at the surface of a liquid
- 28. Philosopher known for the idea of constant change
- 29. Solids with atoms connected by covalent bonds
- 30. Resistance of a liquid to flow
Down
- 1. Attraction between like molecules
- 2. Transition between different states of matter
- 5. Solids made of molecules
- 6. Temperature at which a liquid boils
- 7. Scientist who proposed atomic theory
- 11. Early Greek philosopher, believed water is the basic substance
- 12. Philosopher who thought air was the fundamental element
- 17. Smallest unit of matter
- 19. Tool for magnifying small objects
- 21. State of matter with fixed volume but no fixed shape
- 24. Gas turning into liquid
- 26. Gas turning directly into solid
- 27. State of matter with no fixed shape or volume