Across
- 3. human waste in water
- 6. factors that influence the quality of the water in the river
- 11. dissolved oxygen in the water that helps organisms to breathe in water
- 13. pollution floats to top of the river
- 14. the flow of water creating high and low
- 16. senses movement on a fish
- 17. mix of salt and fresh water
- 19. with a backbone
- 20. pollution that comes from dirt
- 22. kind of fish
- 23. the acidity or basicity of the water
- 24. pcb toxins in water
- 26. amount of salt in the water
Down
- 1. facts about the river
- 2. transition between the ocean and the river
- 4. rain water collects along the river
- 5. blend in with the environment
- 7. protects the organism from the outside
- 8. example of a mollusk
- 9. habitat
- 10. study and discuss the results
- 12. bottom and top feeder
- 15. living organisms
- 18. to remake trash into something new
- 21. adjust to the environment
- 25. sheds skin