Across
- 2. Property sensed by smell
- 3. Rapid reaction with oxygen producing heat
- 4. Lacking shine or luster
- 7. To stay on the surface of a fluid
- 9. Reflects light well; bright surface
- 10. A substance with a pH greater than 7
- 13. Surface dulling due to chemical reaction
- 17. State of matter with fixed shape and volume
- 18. Smallest unit of an element
- 19. Change from solid to liquid
- 20. Visual property of a substance
- 22. To go below the surface in a fluid
- 23. State of matter with no fixed shape or volume
Down
- 1. Force holding atoms together
- 5. State of matter with fixed volume but no fixed shape
- 6. Atom with a positive or negative charge
- 7. Lose color over time
- 8. Perceived flavor of a substance
- 11. A substance with a pH less than 7
- 12. Resists scratching or denting
- 14. Energy transferred due to temperature difference
- 15. Change from liquid to gas
- 16. Easily shaped or compressed
- 19. Measure of the amount of matter
- 21. Iron oxide formed from oxidation