Across
- 1. invisible skin
- 3. part of water molecule
- 7. caused by hydrogen atoms
- 8. air we breathe, part of water molecule
- 11. how water gets back into our ecosystem
- 13. what is the ------- of water
Down
- 2. we can die if it gets too hot
- 4. describing words for a substance (water)
- 5. water in a different form
- 6. water is a ----- molecule
- 9. H2O
- 10. sticky
- 12. combination of two or more atoms