Across
- 1. it’s where the Teenage Mutant Ninja Turtles hide out.
- 4. the warming up of water artificially.
- 7. ________ 64...no repeats or hesitations.
- 9. plants need it to grow (manure or compost)
- 11. water that has been used.
- 12. not clear or transparent because of stirred-up sediment.
- 14. unwanted dissolvable substances in water.
- 15. extracts impurity from polluted environments.
- 16. water that is both black and white.
Down
- 2. the relative amount of salt in a solution.
- 3. water that slides off roofs, paths, roads etc.
- 5. technology involving the extraction of salt from water.
- 6. dirty water also called sewage.
- 8. a chemical that destroys plants (usually weeds).
- 10. to kill troublesome animals.
- 13. all water drains downhill (The Great Lakes Basin is an example)