Across
- 2. a region of the Atlantic ocean
- 5. trees that have cones and needles as seeds
- 6. a very cold biome
- 8. uncultivated land where water collects
- 11. the grassy banks of our waterways
- 12. grassland with scattered trees
- 13. nonliving things
- 14. are large geographic areas with different ecosystems and climates
- 17. the tidal mouth of a river
- 18. land that is wet
- 19. tiny organisms that float near the surface of the water
- 20. a river or stream flowing into a larger river or lake
Down
- 1. something that aquatic plants are attached to
- 3. where there is enough sunlight for algae to grow
- 4. a permanently frozen layer of soil
- 7. a depth in the ocean where light dwindles
- 9. low lying land
- 10. trees that shed their leaves
- 14. living things
- 15. a very hot biome
- 16. the tops of the trees where animals live