Across
- 3. vertical
- 6. where are electrons found
- 7. chemically combined
- 10. h2o
- 11. when things get hot
- 14. protons and neutrons
- 15. superhero element
- 18. whats the staircase in the PT
- 20. sand and water
Down
- 1. burns things
- 2. when things get cold
- 4. unit of measurement for amount of substance
- 5. metal and nonmetal bond
- 8. what identifies an element
- 9. mass/volume
- 12. cannot be broken down
- 13. used to wrap sandwiches
- 16. horizontal
- 17. nuclear radiation
- 19. solid to liquid