Across
- 4. - Coastal wetlands with trees that have roots rising above the water.
- 5. reef A diverse underwater ecosystem built by tiny, colorful animals.
- 9. - Coastal wetlands flooded and drained by saltwater.
- 10. - Land areas saturated with water, like swamps and marshes.
- 12. - Contaminants in the water, harmful to marine life.
- 14. - Catching too many fish, causing a decline in fish populations.
- 16. - A sandy or rocky shore by the ocean or a lake.
- 18. - This term refers to ocean or sea environments.
- 19. - The ocean floor, home to crabs, starfish, and other bottom dwellers.
- 20. - Where a river meets the sea, creating a unique ecosystem.
Down
- 1. - Tiny plant-like organisms that drift in the water and produce oxygen.
- 2. - When water appears cloudy or murky.
- 3. - The deepest part of the world’s oceans.
- 6. - Water that’s saltier than freshwater but not as salty as seawater.
- 7. - The world’s largest coral reef system located off Australia.
- 8. - This measures the saltiness of a body of water.
- 11. The deep, dark part of the ocean where sunlight doesn’t reach.
- 13. - The area between high and low tide, often home to crabs and seaweed.
- 15. - The upper layer of water that sunlight penetrates.
- 17. - Rivers and lakes contain this type of water.