Across
- 5. the first element on the periodic table
- 11. liquids sometimes combine to form this solid
- 13. symbol Ag
- 14. a measure of a liquids resistance to flow
- 15. measure of the amount of matter in a object
- 16. the amount of space an object takes up
- 18. found on the periodic table
- 22. right side of the periodic table
- 24. atomic number 79
- 25. product of photosynthesis
Down
- 1. changes form but not chemical identity
- 2. a characteristic of a substance that can be observed without changing identity
- 3. the temperature where a object changes from solid to liquid
- 4. base for all life on earth
- 6. left side of the periodic table
- 7. atoms are close together and barely moving
- 8. results from a chemical reaction
- 9. a sign of a chemical reaction
- 10. Vibrate and move past each other
- 12. the same as the atomic number
- 17. group 18 of the periodic table
- 19. sign of a chemical reaction
- 20. the amount of mass in a given space
- 21. Vibrate and move freely
- 23. calculate by subtracting atomic number from atomic mass