Across
- 1. sequence in which organisms consume others
- 5. carbon dioxide and glucose make up this cycle
- 6. layer of earth that flows under pressure
- 8. community of organisms and their abiotic environment
- 10. part of crust and upper part of mantle
- 13. get energy from eating other organisms
- 16. largest population an environment can support
- 18. make their own food
- 19. condensation, precipitation, and evaporation make up this cycle
- 20. system in which matter and energy are exchanged with surroundings
Down
- 2. earth's actual shape
- 3. force of attraction between all objects
- 4. thin outermost zone of the earth
- 5. center of earth, made of iron and nickel
- 7. system where energy but not matter is exchanged with surroundings
- 9. break down dead organisms
- 11. relationship between food chains
- 12. makes up 78% of atmosphere
- 14. layer of earth that makes up 2/3 of earth's mass
- 15. related objects that interact to create a whole
- 17. group of processes where matter moves through reservoirs
- 18. enters the soil and water when rock breaks down in this cycle