Across
- 4. 3.5% of water is ________.
- 7. Water regulates the Earth's ___________.
Down
- 1. Comets are mostly _____ ice.
- 2. 60% of water is in a _____ body.
- 3. Scientists discovered _____ water .
- 5. solid water, or ___, is actually less dense.
- 6. 96.5 of water is in the _____.