Across
- 1. you can't see it
- 3. ph greater than 7
- 6. na on the periodic table
- 8. C on the periodic table
- 9. one type of atom, on its own or joined to another atom of the same type
- 11. yellow crystals or powder
- 12. something you can drink and is wet
Down
- 1. a chemical element with symbol au
- 2. atoms and elements that are all in a different space but not joined together
- 4. can be dangerous and appeared red on the ph scale
- 5. a silvery white metal
- 7. a chemical element with a symbol of o
- 8. more than one type of atom joined together
- 10. something that is hard and shape can't change