Across
- 2. elements that are excellent conductors of electricity
- 3. what visual evidence proves that gas is created when mixing vinegar and baking soda
- 7. the smallest known whole particle
- 8. the number of protons in an atom's nucleus
- 10. a physical property of when matter starts to change
- 12. the process where liquids become vapor
- 13. the process where a solid becomes a vapor
- 14. a chart of elements
- 15. a state of matter in which the molecules are packed tightly together
- 16. the number of protons and neutrons in an atom's nucleus
- 18. a mixture that is difficult to separate
- 20. a process that causes molecules to pack together
- 23. matter cannot be created or destroyed
- 28. an atom that has gained or lost neutrons
Down
- 1. the chemical formula for salt
- 2. a substances ability to bend or reshape
- 4. a state of matter where atoms are charged, far apart, and moving rapidly
- 5. energy cannot be created nor destroyed
- 6. gold
- 9. an example of a metallic chemical reaction
- 11. the process where vapor becomes liquid
- 17. what an atom must lose or gain to become charged
- 19. matter that does not react
- 21. matter that responds when in contact with other matter
- 22. a process that causes molecules to move away from each other
- 23. a state of matter in which molecules are close but slide by each other
- 24. where protons and neutrons are located
- 25. a measurement of how slippery matter is
- 26. an electrically charged atom
- 27. a state of matter where atoms atoms are far apart and move fast