Across
- 2. change from a gas to a liquid.
- 4. shows amount of energy in each feeding level
- 6. surface molecules of liquid change to a gas
- 9. tallest layer of rain forest that receives most sunlight.
- 13. obtains energy by eating only plants
- 14. tree that has seeds in cones and needle-shaped leaves.
- 16. tree that sheds its leaves when weather changes.
- 18. a layer of shorter trees and vines in the shade of rain forest
- 19. rain, snow, sleet or hail.
Down
- 1. a leafy roof formed by tall trees in a rain forest
- 3. changing free nitrogen to compounds for plants
- 5. obtains energy by eating both plants and animals
- 7. desert-like where it was once fertile
- 8. an organism that can make its own food.
- 10. obtains energy by eating only animals
- 11. group of ecosystems with similar climates and organisms
- 12. an organism that feeds on other organisms
- 15. permanently frozen soil found in tundra
- 17. feeds on dead or decaying organisms