Across
- 1. of conservation of mass- stats mass cannot be created or destroyed
- 3. - low average temps and very low precipitation
- 6. community of living organisms and their nonliving environment
- 8. process organic matter and nutrient builds up in lake
- 10. uses energy to make food
- 11. only planets
- 12. area of land that is soaked with water
- 14. species-the first organisms to live in an uninhabited area
- 15. - eats both planets and animals
- 17. of conservation of energy- stats energy cannot be created or destroyed
- 18. body of water formed where a river flows into an ocean
- 19. the place where organisms live
- 21. cycle- carbon moves through organisms
- 25. energy by breaking down other organisms
- 27. other animals
- 29. very dry area
- 32. trees- roundleaf trees that drop their leaf when winter is coming
- 34. cycle- the movement of nitrogen
Down
- 2. of energy to an object, caused by using a force to move object
- 4. that changes ecosystem
- 5. cycle- the movement of water between things
- 7. trees- trees with evergreen, needlelike leaves
- 9. a biome that has grass and very few trees
- 13. push or pull
- 16. anything that has mass and takes up space
- 20. web- shows the feeding relationships
- 22. region of earth where the climate determines what taige - low average temps but more precipitation
- 23. transformation- takes place when energy changes from one form to another
- 24. other organisms
- 26. to cause change in system
- 28. number and variety of species that are presentation an area
- 30. slow replacement of an ecological community
- 31. chain-path of energy transfer from producers to consumers
- 33. pyramid- tool that can be used to trace the flow of energy