Across
- 4. a area with shallow water from over the years
- 6. nonliving things i a ecosystem
- 7. incressing temerture in earths atmosphere
- 10. the degree of purity in water
- 13. earth, mars, murcury, and venus
- 14. water running down a hill into a river
- 15. the layer of the atmospere were weather happens
- 16. a substance were tow or more elements are joind together
- 17. an educated guess
Down
- 1. a cloud like form of toxic oxygen
- 2. a factor that can change in an experiment
- 3. jupiter, uranis, saturn, and neptune
- 5. earths energy
- 8. the process of water transforing
- 9. fluid transfering heat
- 10. the distance between tow wave crests
- 11. harsh wind in a funnel shape
- 12. living things in a ecosystem